Finally had the chance to take 1.93 for a MP run and the combined changes work very well in MP. The commerce changes were very interesting, playing as the Greeks with my firend playing as the Romans I was able to gain and maintain a substantial tech lead over him and all of the AI players. His growth spurt almost collapsed his empire whereas my slower expansion by conquest (I didn't try to kill all my neighbors by 1000BC this time) allowed me to keep running a profit at 100% research. The recent changes have at least slowed down expansion by conquest, even if the AI doesn't do a better job overall the individual battles are a bit tougher when you're the attacker, especially early in the game. And you've finally managed to break my "one unit for everything" stretegy.
We had some interesting discussions about siege weapons during our game. The sappers could really use a new unit graphic, or at least something other than two workers since we both got them mixed up with works on a couple of occasions. I was also wondering if it would be possible to use some temporary promotions like other mods are (real fort for example). This would allow us to have siege towers that didn't do any damage to the cities but instead gave all of the units in the same tile some sort of added city attack bonus. That would help make them useful even when you have catapults and other later siege weapons. The sappers come so early that rams are typically never used.