For anyone else reading this in future you should check out the GitHub for modding details here:

https://github.com/FeralInteractive/romeremastered/

https://github.com/FeralInteractive/...Differences.md

Quote Originally Posted by Anarchon View Post
Please can someone tell me what the new hardcoded limits are for modding Rome Total War Remastered.

In particular...

Maximums per mod for...

-Number of provinces
-Number of factions
-number of unit-types (EDU)
-number of unit-models (DMB)
-buildings per city
-building-trees
-characters
-cultures
-religions(if present)
All of these are practically unlimited now

Quote Originally Posted by Anarchon View Post
-Map Size (and whether the regions or ground-type maximums
-climate types
-ground-types
-cities per territory
-forts/watchtowers

Also
-Are map labels possible (like M2TW modders do with dummy princesses)?
-Is turns per year/years per turn specifiable?
-Are road-routes modder-definable?

Anarchon
These are more are less all the same logic as the original Rome