Update:
I've begun working on the Regent Guide again. That's important, because having an up-to-date RG is a requirement if I'm to launch RoE 1524.
Currently working in the income/tax system to iron out some flaws that have been there since 1ed RoE. Overall income will go down (on the other hand there is somewhat less stuff to use money on), province level will be more important, as will actual control of holdings (law is somewhat less powerful). Also expect to see fewer landed micro-domains (they have a place in small, local games, but not on the larger scene), freeing up manors to be ruled by larger domains.