What are the main things you want to see fixed from EB1 in EB2???

[Mediolanicus]

Eastern (Pontic, Parthian etc.) cavalry units must be better than western factions

They already are...

Numidians, Spaniards, Illurians, Tracians, Gaul/Belgians weren't rubbish either in that department, but the Eastern cavalry beats them all...

Unfortunately I can't play RTW with anything else than with the Romani or when really stretching with Carthage or successor states. It just doesn't feel right to build an empire with a barbarian faction, which to my knowledge practically all collapsed after their charismatic and successful leader died (huns, mongols etc.). Important thing about Rome is that it lasted. So I would like to see a more challenging campaign for Romani in EBII. I tried adding money for the AI factions, but it didn't appear to have much impact.

The gameplay details and leader events of EB I were very nice. More storyline type events for leaders would be nice so that the missions would have more depth than just capture settlement or go to a Spartan school etc.

EB will of course never be Romano-centric, but seeing the Romani previews and the new government system and trait system with imperium, it'll be more of a challenge.

The sotrylines aren't a good idea IMO. I don't like "missions". I like to play at my own speed and following my own choices.