I think he comes back. I don't think the transfer portal ends up being the magic bullet for Tyler some of you guys think. He'd have to adjust to new surroundings, new teammates, and a new system. Here, he gets top notch facilities, team mates and coaches that HE HAS SAID he really cares about. The level of unknown for him to transfer for his final year of eligibility just doesn't make sense if his goal playing one final NCAA season is to get better exposure for NBA / professional opportunities.
Also, I have my issues with CM, but one of his strong suits is the relationships he builds with his players. He deserves credit for that.