I'm certain I read at TWC that it will still be two turns per year and it runs on the RTW.exe although IIRC BI.exe will be supported. I run EB with ALX.exe too but I'm not certain whether it will be supported for RSII. You should head over to the TWC (total war center) if you want to find out more about the Roma Surrectum mod in general. Here at the guild, the mod isn't as active.