The Beta, I have to delete it but... I can't do it! All that time in the tower! All that time in Old Russia! SO MANY MEMORIES! I can't let it go!
Just keep it on there until 9 September. Granted all the actual data is kept on the servers not your console. Yes I'm keeping mine on it until the game releases for nostalgia reasons. After I get the actual game then its irrelevant to keep it on there.