I don't think wet wings are gone just yet. A big benefit of this is the ability to move away for standard design. The fan would basically be an overgrown hairdryer (Wasn't there a joke about 146s being powered by 4 hairdryers or was that 4oil leaks connected by an electrical fault?).
You could put the generator anywhere in the aircraft's structure to optimise design. For a 146 you could potentially power 4 fans from 1 big generator or two smaller generators to allow for redundancy. I think batteries should only be carried for the power plant to reduce lag for quick spool-up times.