I'm not confident about that yet Trex. These trends have been apparent previously in the industry, but have often reversed. There was such a developing consensus in the period from 1999 when Giant, Yamaha, Aprilia, Panasonic, BikeTec Flyer and some other e-bike makers all settled on crank drives. But by 2006 they had almost all disappeared under a tide of hub drive e-bikes with SB and similar front or rear hub motors.
Then as we know, crank drives started a fight back from 2008, with first the new Panasonic unit, then the copycat Yamaha, followed by Daum, Tonaro, Bosch and the many others now. But already we see the hub motor fightback, with the very capable BPM, CST and rear Panasonic hub motors a real force to be reckoned with. Panasonic in particular has been putting much effort into hub motors, successively introducing since 2010 plain front hub, regen front hub, electric braking front hub and now the rear hub motor. They also took over Sanyo and their hub motor interests in that period.
And of course the influential huge Dutch pedelec market has mostly dropped crank drives in favour of hub motors. That could be an indicator of consumer (and trade even?) realisation of the nuisance of frequent chain/sprocket replacement that accompanies crank drive. That may be acceptable to the enthusiasts of this forum, but will be widely disliked by the public at large who expect chains to last for years.
So it's probably too early to be at all sure.
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