In a few interviews with showrunner Jeff Davis, he explains that Stiles coming back through the rift for Lydia might just be the last time we’ll ever see him at all!
“We knew we didn’t want Stiles to just pop in and out of the season,” Jeff shared with EW. “We wanted him to be a real focus of the season and this gave us an opportunity to show how much we treasure the character. It felt like a good way to honor his character.”
He added in another interview that “you’ll have to wait and see,” if he indeed does return in the final episodes.
Teen Wolf will return for those final 10 eps this summer on MTV.