SSGX never came out, though, and in fact it has completely ceased all development. All anyone on this forum seems to care about these days is Steam workshop support and emulating the exact appearance of the original PlayStation's crappy integer-based rendering pipeline with no support for basic shaders.
There is no reason to continue trying to make a remake that will just get ignored, and even some of the more original stuff like Formula Fusion is just being ignored and/or hated on for no other reason than people here thinking it sucks.
If anyone else wants to take up the job of making a WipEout Fusion Remake, then go ahead.