Not really sure why everyone expected some major headlining band annoucement this week, they usually save main stage bands for towards the end. Also confused how people haven't heard of these bands when they've almost all been posted about for news and their albums have been reviewed by staff.
Stray From The Path plays metalcore with an emphasis on the core ala The Ghost Inside and Every Time I Die.
Mixtapes does pop punk.
Teenage Bottlerocket is Fat Wreck punk rock.
The other two bands are the only ones I can imagine people not knowing or hating, Air Dubai (Alternative Hip Hop Act) and For Today (Christian Metalcore band known for preaching on stage and homophobic)
If you feel like these annoucements aren't doing anything for you , just know that bands like Less Than Jake, NOFX, The Starting Line, New Found Glory, Yellowcard All Time Low, Mayday Parade, Balance and Composure, Enter Shikari, and Bayside are all heavily rumored to play.And if that doesn't suit your fancy you probably grew out of the tour a while ago and I don't know why you're surprised.