So, after having played with the new patch for a while, I have the following suggestions to make:
1.It's still way, way too easy to get rich quick. You can pile up too many economic bonuses too quickly and by turn 50 I had basically infinite funds which turned the rest of the game trivial. There's simply too many money and economic bonuses thrown at the player from too many different sources. My suggestion is to reduce or remove monetary gains from something like farms, restrict commercial buildings and edicts to apply to inter-faction trade for the most part and to have less economic boosts from dominating the senate, which brings me to:
2.It's too easy to keep high influence. For that I blame the Other Nobles section of characters, where characters belonging to your party can randomly show up whereas other parties only gain new members if you recruit them which means you quickly outnumber your rivals and with that their influence as well. My suggestion is to either have statesmen randomly show up for rival parties too or to reduce the influence gain you get from Other Nobles.
Another thing is automatic influnce gain from high imperium levels is a holdover from older versions of the game where civil wars were triggered by having too much influence and should be removed for this reason since secessions and civil wars are now caused by other means
3.Tying into the infinite money criticism above, you can have so many armies so quickly that the AI is quickly cowed into leaving the player alone which means he can easily pick off targets one by one. The AI should definitely act more decisiviely against the player if he's being expansionistic. In my test campaign (Hard/Hard difficulty) as Macedon I used the join war feature to bypass defensive and military alliances, but no matter how badly I smashed a faction, their allies would not dare do anything against me. This is another factor that makes the game way too easy
Aside from that, the improvements brought by the Ancestral Update are great! If you could do something about the issues above the game would be a contender for best TW title ever.