I'd not hold my breath. It's been my experience that the vast majority of people want to go faster, not slower.Back in the day I rode some pretty hairy stuff on the old Orange G3 in my sig (and on other old school 26ers MTBs) for sure slack angles and big wheels make going fast down techy stuff easier but we just went a little slower. If all you want to do is point it down hill and hang on then current geo is fine but for 'proper' riding (i.e. going up hills too) it's way too sluggish*. Geometry that only starts to work above 20mph is inappropriate for 90% of riders but like many sports the influence of the top 10% racers is all pervading and we get sucked in by the hype.
* My one serious complaint about my Rise (and the Urrun I had before it) is the super slack head angle, both would be better with another 3º or 4º but all MTB/eMTBs have this dumbed down handling these days. I predict that in 5 years time we'll be seeing eMTBs with 70º head angles and 1050mm wheelbases on 27" wheels as being the 'next new trend'...
And modern geo, particularly forbidden's, is hardly aimed at sledding down a hill. It's specifically aimed at being able to slap the crap out of corners at speed.
Back on topic, on an e-dreadnought related note: with some nobl tr37 carbon wheels, specialized's new radial gravity casings, a 600wh battery, and some carbon bars, my s3 t2 now weighs 48.7 pounds. Not bad.