Ok, in Short I'm working on a TL where due to various factors, Napoleon is killed in 1807, causing the Fourth Coalition to defeat the French Empire, avoiding the Finnish War, Fifth Coalition and (possibly) the War of 1812. However the US still own the Louisiana Territory.
How would US-UK relations change? What would be the fate of the newly acquired Louisiana territory? All ideas are welcome.
With the end of the Napoleonic Wars, much of the stress between the U.S. and Britain go away: impressment, the blockade of Europe.
Other issues remain: mainly British support of Indians in the Northwest.
There is also a festering conflict with Spain over the borders of Florida.
But it is unlikely that the U.S. will actually go to war against Britain. I don't know that the War Hawks thought that Britain's involvement in Europe would prevent Britain from acting with strength in North America, but it seems an obvious conclusion; and the reverse follows.
OTL, war with Tecumseh's federation began in 1811. ITTL, about the same, except that rather then Tecumseh's forces allying with British/Canadian invaders, they are driven into Canada and stay there.
(Hmm. What happened OTL to the Indians of Upper Canada?)
As regards Florida - Spain would be in much better shape with the war ending sooner. OTL the U.S. seized most of West Florida during the War of 1812 while Spain was powerless. That can't happen here, but the U.S, can still do it if it wants to; and East Florida too. Spain doesn't really care that much. It may take longer. If so, Alabama and Mississippi are probably admitted as states without their "panhandles".
That area, and OTL Florida west of the Apalachicola may become a separate state of West Florida.
As to Louisiana - pretty much as OTL.