If by red hood we're meaning Jason Todd then that could be fun but I would love to see them do Owlman. Silly sci-fi enough to wash away the taste of the grim and gritty Dc movies but still down and simple enough to have Batman vs his equal. But I would also love to see them show of the worlds greatest detective bit of Batman in the next movie, maybe have Oracle backing him up in a similar way to the Arkham games.
Or we go for a full Dead End movie and have the Alien. Besides that could be the best looking Batman on screen for me.