The new husqvarna has a cradle frame, I thought? and a six speed gearbox, and while the countershaft sprocket is still concentric, there are now two pivot spindles, making sprocket changes a not-removing-the-swingarm affair.
The alternator cover is bigger on the husky...I think the oil capacity is up but only slightly.
I dont know if the subframes are any different, and if the Dursmaa tank would still work as a bolt on.
Dying to know more.