That includes their appearance at Riot Fest. Their replacement has already been announced though, and it's a doozy.
Blink-182 have announced that they have cancelled their upcoming mini-tour, including their headline appearance at Riot Fest.
This is due to ongoing health issues surrounding drummer Travis Barker.
You can read a full statement from the band below:
Though their replacement for Riot Fest has already been announced, and it's none other than Weezer.
So best get practicing this if you're going.