As in one of the 40 electrified models Ford is planning to introduce, is a PHEV Transit Custom. The model is undergoing trails in London and Valencia, Spain now, with volume production starting for a 2019 model. I'm guessing that is for Europe only at this time. Not much details here beyond a target range of over 30 miles(EPA? NEDC?), and the range extender is the 1L, 3 cylinder Ecoboost. Ford’s European Transit PHEV Trials | CleanMPG
With the testing locations, I'm assuming Europe only. That doesn't rule out it coming to the US later. Write Ford, let them know you are interested.