New Battle of Yorktown

Please tell me what do think would happen if the British won the Battle of York town{very unlikely}

Maybe not "win," but in OTL, the French fleet under De Grasse defeated a British fleet sent to evacuate Cornwallis and company, trapping them there. Washington's army then defeated them on land and forced them to surrender.

Perhaps the POD could be that the French fleet is defeated or simply never attacks the British in the first place. The British army at Yorktown is evacuated and the war goes on.

This could easily become one of those TL where Britian holds on to Georgia at the end of the war.