i think the overall estructure/idea of the Stark Varg its pretty complete and solid. Minor improvements can be made here and there, but overall there's little to invent or improve beyond battery technology.
If battery improvements become relevant, Stark could release enhanced models like the EX 1.2, and for us, the original EX 1.0 users, in a few years we could buy that new battery instead of a entire new bike unless you've pushed your bike to the limit and most of its components don't have much life left in them.
Nothing is perfect, and it's clear this is an expensive sport/hobby; if you want something cheap, you can always dance and sing
Can't wait to see the future