Originally posted by DAv
I think this time, being victorious over Russia and all, he would have. Duchy of Warsaw might become somewhat larger (probably with Vilnius) and is renamed as Kingdom of Poland, or something like that. The goal for creating stronger Poland would have been to have a loyal French watchdog in the east. DoW had already proven to be one (war against Austria in 1809), while Russia had proven to be not exactly reliable as an ally - after all, this was what the war was all about.
Poles made the largest non-French contingent of Le Grande Armee and Napoleon called invasion of Russia "the second Polish war". Stronger Poland with its border farther eastward (so closer to Moscow and Petersburg) might keep Russia in check and serve as base, if Russia needs to be brought back to heel again. Not to mention using Poland as a threat to Russia: "disobbey again and I will give Poles all the lands they had lost!". Sentiments and French interests are in this case the same.
So yes, if Napoleon had been victorious and had dictated terms, I think Poland would have been bigger and "promoted" back to rank of a kingdom. Of course he wouldn't have recreated the Polish-Lithuanian Commonwealth, but stronger and loyal ally in the region was something France would have needed and I believe Napoleon would have seen it.