I have been keeping and eye for the Creo / Levo SL motor replacement and I do expect it this year. I have been looking at the TQ and Mavic motors. Both of these are newer than the SL 1.1, but still not as efficient. They do do offer more torque 50mn v 35 which would be nice. Both the TQ and the Mavic has reduced the gearing system parts which makes the majority of the noise. so I am expecting a similar approach from Specialized / Mahle