I am definitely interested in seeing how the next MacBook Pro update pans out. As I mentioned before, if it plays out with the 13" Pro (along with the white MacBook, the Mac mini, and possibly the 2011 Airs) being stuck with Sandy Bridge's IGP, then at least the situation will be short term. Ivy Bridge should be better in 2012 (IGP should support DirectX 11 and some other whistles), and Haswell should be much better in 2013 (FMA and fancy on-package vector coprocessors). So there is hope for the 13" Pro (and the other Macs with similar innards) down the road even if the short term solution ends up rather iffy.
Yes - there is always something new. That's the reason why I don't want to see a 3-4 years old processor in any new Mac from now on. Arrandale is tolerable for the 13", but there is no way I will pay for Penryn again.