I think Trent should get revenge on Duncan and Gwen since their bonding hurt Trent's sanity, making him paranoid about keeping his relationshipw with Gwen healthy. However, trying to get Gwen's attention, he went overboard. That's why Trent should get revenge on Duncan and Gwen if he meets with Courtney and Alejandro.

We could imagine another possibility if (and it's a big "if") there was a season 5. Chris could put Gwen and Duncan in separate teams. There another possibility to bring another triangle with Courtney-Trent-Gwen and I didn't mentionned Heather yet, imagine what if Heather and Duncan are in the same team again while Gwen is another team? There lots of electric sparks coming.