I think it would be much more problematic if they had announced some hardware refreshes/upgrades
without mentioning the Mac Pro. But since they actually said nothing about any of their hardware, my assumption is that it will come some time later and it will include the nMP.
When is anyone's guess I suppose. A WWDC announcement was always nothing more than rumors. But we started to believe them like they were a reality. The fact that they didn't announce new hardware last monday doesn't mean they won't.
Nothing in 3 years is a bit baffling I totally agree. But I'm just trying to stay optimistic