I'll see if I can implement that somehow, but if I can't I'll try to make some other form of regeneration using the turbos (kind of like a MGU-H system used in F1)
Beam forums notifications are pretty fucked up you can go in alerts settings and turn on "notify me when someone comments a thread I'm watching" and watch the thread (1st page, there should be a button for it somewhere in the top right)
I said there won't be any precise release date and no, progress is still minimal. I'd say I did 10% in total for now.