https://www.reddit.com/r/Amd/comments/6krg13/has_there_been_...
If AMD really wanted to, they would have announced something by now. I can commend the AMD rep who continues to push for it, but he can't dictate company policy.
Though it's possible they could just offer it as an option on some chips to get both markets which would do the job, but given the sheer diversity of ARM and possibly RISC V SoC vendors, those might be a better starting place than x86.