There's no set timetable for the concussion protocol. They just have to clear all 5 phases. Judging by the reports today he seems to be in phase 4, non contact position specific activities. They'll do testing again now and compare it to baseline testing he did before the season. If the staff doctors clear that, they send him to the independent doctor to see if they'll clear him. That’s phase 5. The average return time for QBs in the protocol is 7 days fwiw. As a competitive prick, I'm sure Mahomes will be looking to beat the record return time, whatever that is.