There was something said (maybe by a youtuber?) about upgrades merging with your town centre or something on a new era (because so much is specific to a single era). Almost like playing 3 games on the same map.
It also implies that tech disparities will be reset twice a game....not sure if that is good or bad.
I think he has a budget problem mostly. He has executed some games acceptably, but mostly when the teams were smaller and cheaper. He is an ideas guy you want to pair with an experienced implementer and a pile of money..... And maybe a PR team 😆