User blog comment:LuluTDFan/The Ridonculous Race character speculation/@comment-5251356-20140721105759

Duncan and Mike - Both of them deserve to return and place them as a team because they both knew each other before the show but they didn't have a lot of scene-time together in All-Stars. I'm interested to see Mike return after the Mal incident because I see many contestants start to distrust Mike and when Duncan and Mike are placed in a team, Duncan begins to distrusted him but overtime he regains his trust in him after Mike won several challenges from his skills (formerly owned by his personalities) and become good friends. Another subplot for Mike will see him goes through the disadvantages of losing his personalities.

Duncan is able to return after his prison sentence.

As for Mike's relationship with Zoey, I don't want Zoey to return because Mike has more story opportunities than Zoey and I don't think there anything else to tell about Mike and Zoey's relationship.

Chances: Very likely