Right now we are only showing enthusiasm, which is a good thing, but anything beside that isn't needed for now IMO.

Just a word about engine development:
This is hard and this is long, even using an already existing renderer and with a team of around 7(?) people, we are probably looking at a full year of work, maybe more. And this is voluntary development, that means the most important assets of the team would be dedication and a solid will to complete the project. Again I don't want to discourage anyone, I just want to make sure we have a good idea of the kind of workload such a project would need; that's no easy thing. Starting projects is easy, completing them isn't.
I agree with the 'hope for the best, expect the worst' philosophy, but April 4 is still far away, and many things will probably happen until then.
So again, the idea is interesting, but I think it's just too early to discuss much about it. Beside, we all have projects that need to be completed, Ages, tools, etc. Right now the most productive thing we can do is complete those projects.
I must complete Ahra v1, Adam must complete PrpStudio, Paradox must add Relevance Regions to PyPRP, and Trylon must add animated textures.

Seriously, completing our current projects is probably the best thing we can do, it'll keep busy in a positive way, and it'll show Cyan our commitment.