I'm still waiting for a diplomacy upgrade. Too bad that is not sexy enough to be the central theme of an xpac.
One thing I cannot understand at all
Why not only is this not a feature over last TEN YEARS in both civ5 and civ6 and four expansions but nobody is demanding it:
Several civs in one big alliance, for example 5 small civs against 1 powerful one, or 3 civs versus 3 civs, so they all declare war and peace in the same time against the same enemy civ/alliance.
And no, the situation "civ X is in war with Y, civ Y is in war with Z, civ Z is in war with A and B, and civ B is in war with civ Y" doesn't count. I demand
two (or more) powerful alliances, such as those in thirty years war, ww1, ww2, napoleonic wars, goddamn you don't even need modernity there were a lot of huge power blocs in medieval era too - two such blocs existing, competing and then there is a spark and one side is against another.
How on Earth can this game feature ideologies to simulate world war II and cold war but no mechanic enabling "Capitalist Alliance" to fight "Communist Alliance", "Axis" versus "Allies". 90% of wars are 1 vs 1 and if one civ fights 5 and allies 5 then it's usually 10 separate disconnected relations.
Damn, okay, I don't even need huge power blocs "if you attack one of us you attack all of us" (although they'd be really, really useful to properly recreate modern, atomic and maybe industrial ages). Europa universalis 4 or rome 2 total war don't have such thing, but they still end up with tangled web of alliances so frequently 5 factions fight 4 in one conflict etc. Why in civ wars are such individual 1v1 duels?
Why does this game has complicated, messy, entirely new mechanic of 'emergencies' instead of just making several AIs ally against overwhelming empire for a prolonged time period? It's the same crazy mechanic as with new abomination world congress - instead of some sensible, somewhat realistic solution, let's introduce new crazy arcade mechanic with no connection to reality and which does a lot of stuff but fails its simplest purpose.
If there are things third xpac could definitely introduce for me, it's this - world wars and whole ideology mess (with revolutions, cold war etc, like civ5). You wanna endgame shake up? You get endgame shake up.
By the way, I find it hilarious that Firaxis devs stated both before R&F and GS how this expansion will certainly solve end game stagnation and linear rise of empires, and both expansions failed completely, the game is as "early challenge late certain victory" as ever was. I think that's because they are really afraid to include really challenging, dangerous mechanics in this game that could terrify the player without any "positive aspect" - I really dislike how even damn
climate disasters in GS got nonsensical bonus yields (yeah sure a ton of bonus currencies after harsh winter blizzard). Just in case player went into depression because of temporary setback without some shining points dopamine shot.