I would say yes, too, but since it is getting closer to the time they would release the next generation (based on past launches), I would think it might not be until iPad 3 comes out.
Even though Sprint bought about 20 billion dollars worth of iPhone's I don't think Sprint has the money power to supply iPad with 3G. Maybe the iPad 3 or 4 (if there is such) but certainly not the iPad 2.