First of all , zappara , great job ! I am playing with the latest version of RoM + Kalimarkhus' patch and it's great fun (especially since I'm new to the Civ games, allthough I have played Galcivs in the past ) .
Bugs: well, like somebody else said , the city screen has a problem of sorts - the + and - signs for the specialists are not next to the icon they should be - for example the ones for the citizen are below the citizen icon , so they are next to nothing.
About crashes - I have played a few games , most ending at the start of the industrial era after some nasty wars but I have managed to get one game as far as right before the modern era . I have experienced one crash while checking some things in the civpedia (the Galley if I remember correctly) and a couple of crashes while loading new maps but a game restart solved them .The only in-game crash I had was once after creating some crusaders but , again , a re-load solved the problem.
As for future ideas - here's what I had in mind - I think the transition to "currency" is too ... fast in the game .Maybe you could add some techs that need currency and some resources - for example
Currency -> basic coins (need copper) -> valuable coins (need gold and/or silver) and they each give some extra trade revenue + maybe extra food from animals and farms because farmers would work harder to be given coins from the landlord or leader or whatever(and maybe valuable coins give one more trade-route per city or something)
Also , Currency + Paper -> Drafts (which give more food from farms/animals/fishing again because they were given also to farmers and such for their work) -> Bills (same thing but this also gives more trade revenue per town )
Bills + Plastics - > Modern Polymer Bills (same benefits - more revenue and maybe 1 more trade-route)
And then Bills + Plastics + Computers -> Credit Cards which give +1 happiness because people can buy stuff faster and with less hassle and maybe faster production of any unit because it's easier to pay for them now
And after researching valuable coins and bills maybe you could get a world wonder like Fort Knox or a natinal wonder like State Bank or something where people keep money and you get interest (so greater revenue from each city).
And something about promotions (you have some of this stuff on the to-do list under events but I think it would be cooler if you added them as promotions) - for wooden ships -> Grapeshot - > Chainshot - > Bombs (each give more damage against naval units ) and for early gunpowder units (like the musketeer ) you could also add Grapeshot (more damage against melee) . Modern units (infantry mostly) could also have an upgrade of this kind - for example explosive bullets (more damage against pretty much everything not mechanic ) and AT units could have a promotion like Sticky-bombs (good against mechanized units) .
Thanks again for your time and dedication to this mod !
P.S:If any of my suggestions have been made in another mod , then excuse me but like I said I'm new to the Civ games .
Later edit: Another thing I was thinking - an idea for a new national wonder - the Tomb of the Unknown Soldier - most (if not all ) modern countries have something like this and the game doesn't (as far as I know - Ok there's the Statue of the Champion but that's really and ancient wonder whereas the TotUS would be available somewhere after WW1 ) .