Doctor Who has understandably given the bulk of Season 10 focus to our new companion Bill, but Peter Capaldi has a big year ahead as well. Prepare for the end, as the Twelfth Doctor might be ready to regenerate in a new preview for the April 15 premiere.

As per usual, it’s hard to make sense of everything we’re looking at in the new footage (is Missy doing a Dab?), though the closing moments distinctly showcase a regeneration glow on Peter Capaldi’s hand. There’s definitely some teasing at work here, given that Capaldi isn’t supposed to leave the series until this year’s Christmas special, while the search for a new star hasn’t officially begun.

Elsewhere, in addition to Michelle Gomez’s return as Missy, Season 10 will also feature Jekyll & Hyde star Stephanie Hyam in a minor role. Peter Capaldi has suggested Jenna Coleman’s Clara might return in some form, while the search for a new Doctor will begin later this year. Steven Moffat’s last season was also confirmed for 2017, placing Chris Chibnall as the new head writer and executive producer, to begin after Season 10.

We’ll know more soon, but check out the first Season 10 trailers below, and stay tuned for the April 15 premiere.

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