What if in addition to regaining Louisiana from Spain through this treaty, Napoleon also secured the cession of Florida, Texas, New Mexico and Alta California, perhaps in exchange for a revised more favorable boundary of whatever territory the Spanish Bourbons were getting in compensation (I think it was Parma, but perhaps it was Tuscany)?
Presuming there is still a French failure to defeat the Haitian revolution, and a resumption of Anglo-French warfare, would Napoleon offer all this expanded territory for sale to the US?
Would the US purchase it all? What would it pay?
If the US did pay for it all, could it successfully establish and maintain sovereign control over it in the ensuing years, or are other powers (chiefly Britain) likely to contest US claims and take it over themselves? Or would separatists in the far flung regions of this territory rebel and make it stick?