Well, there need to be at least a FEW jedi. And Wedge seems a good candidate, just like Obiwan/Anakin were initially star pilots who fought alongside each other (I'm refering to the REAL anakin as described in SW by Obiwan, not the PT jerk "anakin"). Wedge was the real deal and fought successfully alongside Luke. I can't think of a more worthy Jedi-to-be outside of Luke, than Wedge.
Just so long as they don't call him "Wedgie-wan".