Jazwares will apparently be handling the toy line for the upcoming Teen Titans Go! cartoon, if Big Bad Toy Store's listed pre-orders are any indication.
The cartoon, first announced last year, is based on a comic series (and animated shorts) inspired by the previous Teen Titans cartoon (which, in itself, was based on a comic. Did I just blow your mind?) and recently premiered as part of Cartoon Network's DC Nation block. Little is known about Jazwares' line although the figures are listed as having an October release. They will apparently be in the 2-inch, 5-inch, and 8-inch scales with Robin and Cyborg thus far being the only two announced for the larger scales.
While I'm surprised to hear that Jazwares has the license (given that Mattel usually handles DC Comics on the mass retail side), I suspect that this may be part of an existing agreement with Cartoon Network. It's also worth noting that Bandai (rather than Mattel) produced the previous Teen Titans line although Mattel did release a Teen Titans Go! mini-figure set some time ago.
[ Pre-order at Big Bad Toy Store ]