I wouldn't worry even by Saturday. Last year I stayed at an out-of-block hotel, but I checked my emails from Gen Con 2016 and I received a confirmation from my in-block hotel literally 4 days before my check in date. We're still 2 weeks away from the convention.
Plus k_dog64 is showing their reservation on their Marriott Rewards account and I'm showing my upcoming stay at the Westin on my Starwood Rewards account. It looks like everything is making its way to the hotels, but I would not be surprised if no confirmation emails are sent out until very late next week at the earliest. I know there was a lot of understandable confusion with the housing block being shut down, restarted, and so forth ahead of schedule, but I wouldn't worry about confirmation emails for another week or so at least. Unfortunately it seems like it just takes some time for the hotels to process everything through their systems.