Don't know, but I'm waiting on this too - I need to upgrade soon (sooner than Q2 2012, which is probably the earliest a resdesigned MBP will come out), but not immediately.
I suspect if they do a processor bump, it will be a "silent" one and may not happen until a few weeks after yesterday's announcements (if at all, but I'm going to hang on for a month or two, if I can)