I've now played a game (as Sweden) with the changes.
One thing that stands out immediately is that I have way more gold in the early game. The AI was paying 7 gold per luxury instead of 5. Trade Routes seem to provide more money.
But the biggest change is the bug fix that (finally!) lets the AI contact the player with offers for trade. Because other AIs were coming to me to ask for trades instead of me having to hunt them down, it made maximizing the use of any left over resources much easier. I'm not sure if this is going to improve expert player's performance aside from the convenience, but for inexperienced players it will be a huge boon.
Given all the extra early gold, it seems both Piety and Honor are slightly better. Fielding an early army is much more viable. However, Tradition remains so much better than either that it seems a waste to take either path. Consulates, as noted by others, is still incredibly overpowered.
I am still unsure about some of the flavor changes to AI. At one point in an Emperor game I took Byzantines capital with crossbows. She had 2 Dromons, 1 warrior and 1 composite bow in her empire. Maybe I just got lucky. Or maybe peacfeful-ish AIs are a bit dippy now. Too early to tell.
Given the buff to Japan some additional sea resources would be an excellent addition to the game. It's very common on many of the Firaxis created maps to have miles of coastline with no sea resources. Perhaps a solution to this that would not unbalance the game would be to allow Gold, Silver, Copper, Gems, Stone, Aluminum, Uranium, Marble and Iron to sometimes appear in the water but require a fishing boat to build, just like Oil does.
I think Germany should have a 100% chance to get whatever effect it gets from barbarian camps. Enough with the random rolls. A 67% chance means to succeed per capture means if the player encounters a fairly average number of 3 barbarian camps early there is a 3% chance to get nothing at all. How much fun is rolling a die, 3% chance you get no UA? Rather than a strategy it sounds like incentive to restart if you get screwed by the dice.