Who cares?
Hey, who cares what the future MBP upgrade will be? There is only one point in time when you can buy a technology products - at exactly the wrong time. If you like it - buy it, if not then don't. This early 2011 upgrade cycle was a big jump from previous 2010 models.
But it's nothing compared to the upcoming early 2014 MBP models who will be only 2mm thick, 3D retina display, 5TB SATA IV RAID 0+1 Arrays, 36 Core i-12 5.6GHz and have a weight of only 0.8 Lbs, selling for 3200$
So if this is your dream machine, then wait for it. Use your money, say 2000$, to buy some Apple Stock (NOW!), hold it for 3 years and purchase the top-of-the-line 2014 MacBook Pro with the profit you make with AAPL stock.
Trust me, I have seen these 2014 models already using my TimeMachine...