One big requirement, don't be annoying on the forums. (Not saying youre one of them) But there isn't a written out list of requirements. It's mostly if F2YS needs more, he knows who's actually going to be helpful.
It will, along with a new set of tires, a new engine, an engine cover and a few new skins for the Addon pack and possibly more.
The next CRD update is going to be including all the new features and stuff. (If memory serves me correctly) Just to make sure everything is good to go, and no more hotfixes come along and break it, F2YS is going to wait a couple of days. He is aware that everyone is going to be upset it wont work for a few days, but it's the best option.
No exact time yet, still making sure everything is good to go. F2YS is also very busy currently IRL, so he has limited time.
Luckily, the mod is still mostly useable, just dont floor it for too long. It could've been way worse.
Why do people not poke the site for stuff or look back to see answered questions, or a question they want to ask that's been frequently asked before.