The decline of Fibre-Channel?
This article underpins the inevitable decline of expensive and complicated FC kit in the face of Ethernet-based solutions that are:
Ubiquitous, nearly as fast and cheap!
With a move to Object Storage and scale-out NAS, iSCSI will serve the block space, but also begin a slow, relative decline. Let's face it, blocks are going out of fashion. Bring on the clouds!