Add a formable nation only the ghassanids can form? Maybe called "Arabia Magna" or "Ghassania Arabia" which has a mission tree to form the nation which it encompasses all of arabia and the fertile cresent.

could you add some religions like norse or romuva it would give a bit more flavour to the map and consider the diversity of christian religion like Catharism,Lollardy or the Waldensians

Few things to recommend:
1. New Mission Tree for Wallachia/Romania. Romania starts the game at the 1444 start date with one of its missions already complete, giving it cores on one of its vassals. Perhaps add missions that have to do with Byzantium, Crimea, and Hungary.
2. Add special events to the North Africa nations, excluding Knights Templar, where their ruler/heir converts to a different religion, like Shi'a or Sunni, or decide whether to change the nation's religion, or incur a severe diplomatic penalty.
3. Since nations like Spain and Ottomans are absent from the campaign, change their unique Splendor abilities to a different nation that can actually use them, like Egypt instead of Ottomans, and Morocco instead of Spain.
4. Add a "Complacency" modifier to Catholic nations during the first age of the campaign to increase aggressive expansion penalty by 50% and perhaps even grant AE in provinces you have claims but not cores on.

I think the author should change the muslim tech group to middle eastern or something because of how many nonmuslim countries use it. It's a pretty simple fix compared to de-arabizing province names or redoing mission trees but would go a long way towards increasing immersion.

Just adding more mission trees in general would make this mod a lot better.

I make my own german localistion because yours is a bit lacking
Any possibiliy you maybe want them when I`m done translating?

@murphyslawbroke - are you still working on that?

Have you ever considered making fall of Islam compatable with governments expanded? Like making a patch that makes them compatable, I think that'd be great.

Governments are not very modular on Paradox's end. Making the two compatible would take a lot of development time.

Fair enough. I understand.
Now I suppose this second one is just as unlikely for you to do but maybe you could create a secondary fall of Islam mod that removes the extra governments you've created?
I thvink that could make it compatable.
Another suggestion of mine is to maybe just incorporate GE into the base mod but I am not expecting you to do that because that probably takes just as much work as creating a patch to make them compatable.

It takes the same amount of work to incorporate, and has the added issue of forcing GE down people who don't want it.

Yeah fair enough

maybe missions for the Cumans?

@emperorOfNothing
Cumans get a thicc mission tree as soon the 1.32 update drops ;)

Possibly change map from vanilla to a map with more provinces? Like BT for example?