This was tweeted out by the main stellaris twitter in response to a question about complexity in the console version. We already know most of this, however there are a couple of useful things that are new.
- The "blocked" district tiles are indeed because of Deposit/Feature Blockers. (evolution of current tile blockers).
- Slaves are their own strata.
- Autochthon Monument Gives "culture worker" (WIP name?) jobs every 30 infrastructure.