Into the Breach: The Kineticist
Strange forces are at work...so master them.
This product is currently available from the DrivethruRPG site, and will become available from the D20 store and Paizo.com shortly.
And don't forget to check out the companion book Tides of War: Kineticist/x Feats for ways to blend your elemental power with the abilities of a number of other classes.