I think the iAPX432 team went on to do the i960 (another interesting architecture that didn’t really find the success that was hoped-for) and then finally they went on to the PentiumPro where they found more success.
Intel if they had added quicker, could have cooperated with a Unix workstation maker and potentially done really well.
Sun was defiantly looking around for a chip partner at the time, but non of the American companies were interested so they went Japan. So the timing didn't really work out. A Sun Intel alliance would have been a scary prospect and beneficial for both companies.
* Certainly not the first 3D arcade hardware but arguably this along with Namco's MIPS-based System 22 (Ridge Racer, released a little before Daytona), was the inflection point that made 2D effectively obsolete.