In a 20 minute Twitch stream (linked in the title), Paizo announced two new classes being play tested starting next week:

The Runesmith

A slotless support caster/"melee magician" that invokes both passive and active "spell" effects by drawing runes on everything.

The Necromancer

A prepared Occult caster that summons undead "thralls" to do their bidding. Thralls sound like they are cheap, disposable summons intended to be utilized as an encounter resource.

We should get our hands on the playtest resources on 9 December. As someone who's gone from playing a Champion to a Guardian, I'm pretty pumped to have another melee support class. There's been an embarrassment of riches this year for support players who don't want to use spells! It's kind of giving me WoW Shaman vibes (which, of course, was my WoW class).