I really don't think they are going to release the hover version. I'm okay with using the part one DeLorean if there is a way to get a custom mr fusion.
Yeah that's what I'm on the lookout for as well. The wheels are easy enough to modify and scratchbuild some extra parts for, but a Mr Fusion would be a bit trickier to make. Maybe now that it's looking less likely we'll get an official version, someone here will create a custom thread for some hover parts...