Next year, since Gronk will be on the payroll anyway, and since he's probably doomed to never play 16+ games in a season again, and since we've proved that we can secure the AFC #1 seed without him, and since he's so valuable for the playoffs:
We should hold him out until the last 3 games of the regular season. That would give him time to get in game-sync with the offense, and then he'd be fully healthy for another playoff run.
This is a stupid suggestion, there's no way in hell any coach would ever do this, but it may be the only way for Gronk to ever play another playoff game.