If new, Skywell like Xeon based nMP to be released, in the same form factor as current MP, I am not sure if I want it.
Could it be that they choose to skip skywell?
....
Xeon E5 v5 ( Skywell) isn't due until at best quite late 2016 or pretty likely early 2017. I'm not sure how Apple skips something that hasn't even been released yet.
Skipping E5 v5 means waiting until at best 2018 and decent chance 2019 to update the Mac Pro. That would be pretty "bozo the clown" product management for the Mac Pro ... even past some of the moves over the last 3-4 years
At this point the likley candidate for an updated Mac Pro is a Xeon E5 v4 (Broadwell). Current leaks place that in a Feb-March 2016 timeframe for launch and shipping systems (at least from Dell and HP ... whether Apple continues to hit the snooze button is up in the air. ) .