Newt

After the maze Newt went to Japan and joined UA. Thomas got his memerioes back and rememered he was daing Derek Hale but he broke up with him and tried to carry on as his normal self tho he couldn't because he missed Newt.

That is until the pack move to Japan because of their quirks and Stiles/Thomas has to go with them and he sees Newt but like him he goes by a diffrent name.