DC Comics Teases Tim Drake Becoming Robin, Dick Grayson Becoming Nightwing, An MIA Damian Wayne (Robin No Longer) In Batman #99 Penultimate Joker War Issue! (Sans Spoilers)
Here are the interior pages.
Nightwing gets a variant cover despite the teaser page having him in his “old” costume.
He’s also in his Nightwing costume on the main cover with Batman.
Clownhunter is also teased in another variant cover.
Batman #99 is in stores on September 15 / 16, 2020.