I have two lenses left on my wish list. The 50L and "next" 24-70L, whatever that may be. I do not want the "current" 24-70L. The Canon US rebate schedule just went into effect yesterday. The 50L and "current" 24-70L are both on it. I guess I can make the assumption that the 24-70L will not get an update before these rebates expire on January 7, 2012?
I was planning on getting the 24-70L-II first but I need the tax write off this year so I guess it's probably prudent to get the 50L.