This is more of a question directly posed to the devs, since I don't think any of us from the community has seen the code changes.
Q1: Apart from the shown shadows/shaders facelift, will the game bring improved physics and other things, such as an increased spawn distance + more pedestrians to give the city some more life? (since optimized code should strain the servers less)
Q2: Are there going to be any additions that G1 had done but didn't/couldn't finish?
EDIT: I understand that it's about upgrading the code into the new engine version to make it more workable with, however my question is that whether along those lines, if during those long years of development hell there were some projects/improvements that were meant to be released with the update/upgrade.