Steam Greenlight Question

Since EF has been 'greenlit' on Steam, what exactly does that entail for the mod? Will it become a free to play game (requiring base CoH and subequent expansion packs) that we download from Steam? Would it mean any other changes?

Furthermore, when can we expect this to take place? Will the next major update bring EF to Steam, or will this be in the more distant future?

The only difference is that you will get it from Steam and it will download the updates automatically like any other steam title.

Yes, the next major update will bring EF into Steam.