You're welcome! I am at the very end of the game now. One more bug is that the city graphics have disappeared for me. Could this be because no graphics have been assigned to cities for the final age?
The cultural victory is ridiculously hard to achieve by the way. There are nowhere near the amount of multipliers as in the normal game and there are no landmarks because there are no archaeologists. Only theatres add the bonus for culture given by wonders. This in contrast with hotels, airports and the national visitor centre and the Internet in the base game. In your mod, I'd suggest adding the same ability of the theatre to the plaza. Possibly building theatres everywhere could then lead to a national wonder The Theatre of Dionysius to mimic the national visitor centre. Then, a dark ages tech which is really expensive (10 times normal cost) could add the double tourism bonus the same as the internet does in the base game (maybe call it "Guardian of classicism"?). As it is now, the lack of archeology is compounded by the lack of multipliers. I still need 1019 turns to become influential with the Frisii... and that's with an empire score of 178 and 75% multiplier from open borders etc. No amount of travelling philosophers can make a dent in that. That while I am playing on Monarch to get a feel for the mod.
I like the way you tried to remove the anachronistic musicians and artists, though I think you could have kept artists, as there were plenty famous classical works of art, from mozaics to sculptures to wallpaintings etc. Some way to build landmarks instead could possibly be nice, as they are less anachronistic than seeing those modern works of art splash on the screen.
That leaves me with the diplomatic victory. It won't trigger with only me being in the "Future age". It might take some time for the rest to catch up. This probably would not be a problem in a game on immortal level though.