i need unistall the game because the hard disk is almost full

so i have a question. there be another expansion in the future? to backup the savegame
or in the Divnity III there be a opcion to import our savegame, like Mass Effect

Because near of the ending of flames of vengeance you have the change to free or not the bad guy (i dont remember the name) and that may influence the sequel (Divinity III or a new expansion)