Porting means lot of devs to port all the stuff.
Lot of bugs also.
And it would need indeed programmers, i don't see one man doing all that stuff, even only for OpenGl version.

I think like some people , that an improved version of WED would be first priority.

Well A8 is what it is by now, and like i said is programmer
engine mainly and it fits great on that side.
And it's perfect for small indie projects.