I would guess it will be not dissimilar From DI2 and Hydralic brakes. Reading, playing, making mistakes, more use of computer diagnostics, tech seminars, friends
I think ebikes are not going to be a trend like fixies, but slowly become a big part of market and riders
I have a friend who is on his second (first was lower end and did not survive, current was over 7k and seems to be surviving) that he uses for mountain biking. He would not be biking otherwise.
I also am seeing more and more people commuting on them in my area......and as best I can tell these are added bike commuters, not people who switched from a regular bike.
all the good shops in my area are adding ebikes (of course many who have Specialized connections may have not option)
__________________
Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)