User blog comment:Peachycream/My Total Drama Season 6 Character Predictions/@comment-25342388-20170807143528

I doubt Gwen and Duncan will be in the season without Courtney, maybe Duncan but I can't see Gwen competing if Courtney isn't. They still have unresolved issues after all.

I think the writers are done using Cody and likely Sierra too since I can't see anyway they can stretch her obsession with Cody any further and a developed, competent Sierra is apparently beyond their ability to write.

After the severe backlash All Stars received, in particular the reset button. Mike is very, VERY unlikely to compete any time soon besides he doesn't have MPD anymore. What would he do without his personalities? Same goes for Zoey.

RR characters are pratically confirmed to not be competing.