Doubtful, since ATT is the only iPhone carrier not to support MMS. Other carriers have had MMS since day one, so there's no reason why apple would provide an update friday.
I believe Apple will look further into the issues before releasing an update. That is unless people really start to complain.
It'd be amazing if Apple released an update on Friday to attack these battery issues.
But I doubt they would release an update so early, or so fast like they did 3.0.1.