This applies to all EAW mods, not just this one. There will be more updates in the future and they WILL break existing saves, but I will post about them here some time in advance so you have some warning. To ensure you can still play your current campaigns after an update, be sure to do the following:

Copy and paste the mod folder from Steam\steamapps\workshop\content\32470 to Steam\steamapps\common\Star Wars Empire at War\corruption\Mods. Rename the 2894927178 folder to EAW-Remake, then paste "MODPATH=Mods\EAW-Remake" into your Steam launch options.

This will create a mod instance separate from Steam Workshop, that will not be automatically updated. You can then switch easily between this older version and up-to-date version via the Steam launch options.