You will have to check with Princess, last I read, only one ship per day will be going to Cozumel and using tenders, since the piers can not accept ships yet. I would say its doubtful that many ships will be stopping there in the near future. This week would be the first week that anyone will stop there, would think there wouldn't be must to see yet.
Both the Star Princess and the Coral Princess have been to Cozumel this week. There have been some pictures floating around showing the celebration going on welcoming people back to the area. It is amazing what they have done there so far.
Looks like there are days when up to 4 ships will be visiting at one time. Can't quite imagine how it will all work, but hopefully it will.