Spoilers - Looking at Helldivers 1 for possible future content, known leaks, and an observation.

[TargetPractice]

Weapons
P-2 Peacemaker - Already in game.
P-6 Gunslinger - Already in game.
FLAM-24 Pyro - One-handed flamethrower Sidearm.
PLAS-3 Singe - Pistol version of the PLAS-1 Scorcher.
AR-19 Liberator - Already in game.
AR-22C Patriot - Similar to Liberator. Less damage per shot, higher rate of fire, and larger magazine size. (Leaked)
AR-20L Justice - Similar to Liberator. More damage per shot, lower rate of fire, smaller magazine size, and more armor pierce. (Leaked)
AR-14D Paragon - Semi-auto (could upgrade to 3 shot burst) rifle that has slows on hit due to poison-laced bullets.
MG-105 Stalwart - Already in game but support weapon.
SG-225 Breaker - Already in game.
SG-8 Punisher - Already in game.
DBS-2 Double Freedom - Double barreled shotgun. Can upgrade to become one-handed and set enemies on fire.
SMG-45 Defender - Already in game.
MP-98 Knight SMG - Already in game.
SMG-34 Ninja - Silenced SMG.
LHO-63 Camper - Sniper rifle, seems similar to R-63 Diligence.
RX-1 Rail Gun - Already in game but support weapon.
M2016 Constitution - Rifle with high power, Armor Pen, 5 round clip, and reloads rounds one at a time.
CR-9 Suppressor - Semi auto/ Full auto rifle that shoots small explosive rounds. Sounds similar to the R-36 Eruptor from the upcoming warbond.
PLAS-1 Scorcher - Already in game.
LAS-5 Scythe - Already in game.
LAS-16 Sickle - Already in game.
LAS-12 Tanto - Laser SMG
LAS-13 Trident - Laser Shotgun
AC-3 Arc Thrower - Already in game.
AC-5 Arc Shotgun - Already in game.
Saber - It's a sword.

Support Weapons
MG-94 Machine Gun - Already in game.
MGX-42 Machine Gun - Disposable version of the Machine Gun.
AC-22 Dum-Dum - Already in game (Autocannon).
LAS-98 Laser Cannon - Already in game.
FLAM-40 Incinerator - Already in game.
TOX-13 Avenger - Toxic flamethrower like weapon that also slows targets it hits.
Obliterator Grenade Launcher - Already in game.
MLS-4X Commando - Disposable (in second game) missile launcher with 4 laser-guided missiles (Leaked)
RL-112 Recoilless Rifle - Already in game.
EAT-17 - Already in game.
REC-6 Demolisher - Satchel charges with Detonator.
M-25 Rumbler - Portable mortar.
REP-80 - Heals or repairs what you hit with the beam.

Perks
Fragmentation Grenades - Already in game.
Stun Grenades - Already in game.
Smoke Grenades - Already in game.
Incendiary Grenades - Already in game.
Laser Aim Module - Laser pointer on all weapons
Heavy Armor - It is just like wearing heavy armor.
Cardio Accelerator - Basically the Stamina Booster.
Stratagem Priority - Shorter cooldown for Stratagems.
MD-99 Autoinjector - Heal over time, basically our healing stims, but slower and permanent.
Displacement Field - Basically the leaked displacer pack.
Strong Arm - Further throwing range and melee damage.
All Terrain Boots - Basically Muscle Enhancement.
Precision Call-In - Shorter call-in time for Stratagems.

Backpacks
AD-289 Angel - Heals nearby Helldivers. (Leaked)
AD-334 Guard Dog - Already in game.
LIFT-850 Jump Pack - Already in game.
Resupply Pack - Already in game.
SH-20 Shield Generator Pack - Already in game.
SH-32 Directional Kinetic Shield - Already in game.

Vehicles
EXO-44 Walker Exosuit - Already in game. (Patriot)
EXO-48 Obsidian Exosuit - Mech with 2 autocannons. (Leaked)
EXO-51 Lumberer Exosuit - Mech with a cannon and a flamethrower.
M5 APC - 4 seat APC with a driver, one machine gunner on both sides, and a double barrel auto cannon gunner on top.
M5-32 HAV - 4 seat heavily armored APC with a driver, one machine gunner on both sides, and a cannon on top
TD-110 Bastion - 2 seat tank with a gunner seat with access to front facing machine guns and a cannon, and a driver
MC-109 Hammer Motorcycle - 2 person bike with a driver and machine gunner seat.

Deployables
A/AC-6 Tesla Tower - Already in game.
A/GL-8 Launcher Turret - Similar to Mortar sentry, but can launch incendiary grenades
A/MG-11 Minigun Turret - Already in game.
A/RX-34 Railcannon Turret - Railgun sentry pretty self explanatory
Airdropped Anti-Personnel Mines - Already in game.
Airdropped Stun Mines - Mines that are like the stun grenades.
Anti-Personnel Barrier - Razor wire wall, slows and damages units that go through them.
AT-47 Anti-Tank Emplacement - Emplacement with a powerful cannon
Distractor Beacon - Attracts patrols to where you place it
Humblebee UAV drone - Shows large area of map, can be upgraded to show hidden objectives and samples.
Thunderer Smoke Round - Basically Orbital Smoke.

Offensive Stratagems
Airstrike - Already in game.
Close Air Support - Combines Airstrike with strafing run
Heavy Strafing Run - Just the strafing run but move right to left instead of away from you.
Incendiary Bombs - Already in game.
Missile Barrage - Fires missiles that target anything in the area.
Orbital Laser Strike - Already in game.
Railcannon Strike - Already in game.
Shredder Missile Strike - Nuke an area.
Sledge Precision Artillery - Similar to the Rocket pods.
Static Field Conductors - Already in game.
Strafing Run - Already in game.
Thunderer Barrage - Similar to 380 Barrage.
Vindicator Dive Bomb - Similar to 500kg Bomb.

Known Leaks
AD-289 Angel - Heals nearby Helldivers, maybe vehicles and deployables.
EXO-48 Obsidian Exosuit - Mech with 2 autocannons. (Emancipator Mech)
MLS-4X Commando - Disposable missile launcher with 4 laser-guided missiles.
Nuclear Bomb - Seem similar to Shredder Missile Strike.
Eagle Air-to-Air Missiles - Kills flying enemies.
Super Earth Troop Support - Get NPCs to help you. Dropped by gunship.
Carpet Bomb - Bomb and entire area.
GL-21 Incendiary Grenade Launcher - Incendiary Grenade Launcher.
BX-7 Displacer Pack - Backpack that teleports you a short distance if you would have died, has cooldown.
Airburst Rocket Launcher - Cluster explosive missile launcher.
Anti-tank Mines - Mines that can be used against heavy targets.
Remote Explosives - Maybe the REC-6 Demolisher.
Piñata Full of Surprises - random weapons inside.
Recon Vehicle - Basically the Warthog from Halo.
AR-22C Patriot - Similar to Liberator. Less damage per shot, higher rate of fire, and larger magazine size.
AR-20L Justice - Similar to Liberator. More damage per shot, lower rate of fire, smaller magazine size, and more armor pierce.
SG-225NS Breaker Nailsplitter - Breaker with more armor pen, accuracy, and more Recoil.
SG-225BB Breaker Bugbiter - Breaker with more damage, recoil, and less maneuverability.
AR-48 Truth Whisperer - Silenced Rifle.
ST-1 Stinger - Single use anti-air missile launcher, requires lock-on.
Medical Supplies - Likely backpack that just supplies stims, more slots than resupply pack.
MS-220 Missile Silo - Long range missile you place beforehand.
Orbital Illumination Flare - Illuminates an area.
E/GL-6 Trench Wall - wall with grenade launcher on top.
E/M-105 Defense Wall - wall with machine gun on top.

Something else I noticed is what looks like an energy pistol next to the thermite grenade on the ship. It might be the PLAS-3 Singe, or maybe an arc pistol. I doubt it is a laser pistol, unless they are adding a non-beam laser pistol.

[♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥]

I hope we get our own tank and mech with flamer someday. Also i wonder will it be made from cardboard as Patriot mech compare to bots Annihilator tank.

[Moonlightfox]

Why do people keep acting like ♥♥♥♥ from the first game is "spoilers"

like I tell someone the game isn't going to shut down the servers when we beat the bugs and they act like I told them some secret twist to the story

[TargetPractice]

The spoiler warning was for the known leaks section. I believe that leaks would fall into spoiler territory.