It needs to be about twice as fast to basically catch up with A72/Kryo, so it better have 'latent development potential' as you put it.
Really, I can't understand how you can defend what is very clearly a lazy, half-baked effort from Intel with respect to Atom. Intel is literally the world's premier CPU company and it's getting owned by ARM and Qualcomm, let alone Apple which is in an entirely different league.
This just reeks of Intel viewing Atom as a low-priority product line internally. No wonder the Atom team is bleeding talent to other players in the mobile industry (Silvermont/Airmont lead architect now works at Apple, for example).