I guess it will be about June befre we know what they have done to the 2011 models, since production is scheduled to start in August. Supposedly there are major revisions to the interior, but so far they have been coy about the drivetrain. The Wrangler will eventually see the Pentastar, but not clear yet if that will be 2011 or 2012.
I was thinking of waiting for the 2011 model line to see what was what, but decided to buy a used 2008 instead. My rationale was that I find the power to be more than adequate with the 3.73 gears, and I am not that anxious o be the owner of the first model year of a new engine anyway. The 3.8 is an old-tech pig, but it works and has an established history of reliability.
I guess I would do a "doh!" if the 2011 had a fold-flat front passenger seat as in the Patriot, and or a sliding / reclining rear bench - both would be major improvements.
I gave up a long time ago hoping for a diesel for North America. Not going to happen anytime soon - maybe never. They really are that stupid.