We can only hope. Speculation is the iPhone 5 (4G) will be coming out this summer sometime. So hopefully apple will go ahead and launch the 4G iPad at the same time.
I think they will wait til summer to release the iPad 2 as well. At least I hope so, that way we can 4G at the same time and don't have to wait for another model update to get into Verizon's new LTE network.