Sportsmaster is Deathstroke, but he will not be Slade
Because while Sportsmaster is dangerous and savvy, he doesn't have Slade's brillance or terrifying charisma. Even with the Lazarus Pits resurrecting him, he still will suffer brain damage.
How much brain damage? and How well do the Pits heal a dead body?
Dick's love-interest will be...
Starfire
Oracle, who likes Robin, but not Dick Grayson.
Cat Grant was raped in L.A.; that's why she doesn't wear happy (read: good looking) clothing, or take care of herself anymore.