After some careful thought over the last week about the final maximum size of the RPC map engine, I've finally settled on 512x512. While the engine can actually support up to 2048x2048 before it starts having problems (on a good machine) 512x512 seems to be a nice, reasonably number that most all platforms should be able to support with minimal issues, and it's still huge anyway! 512x512 maps are large enough that you still have a ton of space to move around in. Anything above that like my 1024x1024 test map in the 7-10-2014 build, are simply overkill anyway. Since the game is designed to keep the player bottled up in a small area of the map trying to defend themselves, in a typical game I would expect a player to set up his village in a small location on the map not more than 128x128. So, even the 512x512 maps are huge, offering many spots on the map to setup and it really won't have much effect on the end gameplay for you guys.
Of course, since I didn't want to lose my old test map, I decided to write a script to convert it from one large 1024x1024 map into 4 512x512 maps, so here's the results!
(Note: These maps are still not final products)