Well you've read about the old Skye, with the improvements on the new one it's gonna have a stiffer front end, pretty bombproof, and the back end is obviously down from 380mm, probably around 360mm. So call it a 970wb instead of the old 990 assuming the front end hasn't changed. The Arcade ain't gonna have a shorter wheelbase than that., and people are saying the reach is longer too.
Being pretty short so you might find a Skye front end more manageable.
That's all on paper obviously, I'd love to ride both.