couldn't say about new / modified models ... I wouldn't hold your breath on 2021's being available before September however.
I have recently acquired a 2019 Trance E+ Pro 1 and I have been enjoying it quite a lot... the 2020 has XT 12sp and XT 4piston brakes.. and an smart assist mode... which would have been nice to have..
Regardless the 2019 has been a blast for the week I've had it now.. also makes riding in the SoCal summer somewhat more realistic for myself... without dying of heat stroke.. so that is good.