User blog comment:ScorpioTheBadGuy/Speculating The Season 6 Returnees Of Total Drama/@comment-26865399-20150819105241/@comment-4742462-20150819141644

Unfortunately, they're more than likely gonna bring Sugar back simply because of how far they made it in Pahkitew Island. Of course, I hate that possibility because I'm someone who considers her a Scrappy, but there's more people in the fandom who would call her a Base Breaker before calling her a Scrappy.

Not counting Noah, Geoff and (arguably) Owen being in The Ridoncolus Race, they've shown time and time again that fan demand for one character really doesn't affect them in the long run in terms of choosing who gets another shot at the competition. The ones who always come back are the ones who made it far, and even if a lesser contestant is used they'll more than likely get booted too early (Bridgette, Noah, and Tyler in World Tour).

Dave is also to likely come back for the same reason as Sugar (made it far in his debut season). And honestly, with him I'd say it be for the best because his character needs to be fixed after how much it was mangled in Pahkitew Island.