Not expecting NVMe in 3PAR in 2016
I have no official or unofficial information but 3PAR *just* refreshed their hardware last year, I personally wouldn't expect anything NVMe from them maybe until late 2017 at the earliest. The one exception might be if they use NVMe caching within the controllers themselves (by using the PCIe slots for such cards instead of HBAs).
But I think realistically existing SSDs are plenty fast enough to drive the VAST majority of workloads out there i think the faster NVMe SSDs will once again put a real barrier that storage systems will have to engineer around to make the controllers capable of driving such I/O while simultaneously doing everything else controllers do(and in some cases like 3PAR do it very well). It took many years for storage systems to "catch up" to just SSD speeds. (you could put SSDs in storage systems for many years but it didn't take many SSDs to max out the I/O capabilities of the controllers in front of them).
Could always be wrong of course.