Ok I really think making a roman mod is pointless for ETW. THe game mechanics are completely incompatable. BEsides CA is already hinting at a R2TW using the ETW engine.
Additionally I say let the EB team deal with it, Their still on EBII which has got prolly till next summer, by then there will be likely a clear announcemnt on the next TW title. use the ETW engine as a test bed, so when R2TW comes out everyone will be ready