Alternate Treaty of Ghent

What if Napoleon did not lose in 1814? Lets say he does not invade Russia.
What kind of settlement would the British make with the US? Would they have wanted to settle with their transAtlantic enemy to concentrate on France and give in on impressment and neutral rights? Would they have been able to launch the offensives they did OTL in the summer of 1814? If not how would that effect the peace talks?
 
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