Just received the announcement of the Jet1640EVS. I was told two years ago that this was in the works. Only 1 1/2hp shown, but new castings, swivel and slide head with positive locking (indent and screw in as well as anti-rotate block underneath), positive spindle lock. Spindle has larger bore (5/8") and dual front bearings giving a longer nose for better access. Tool rest extension for access when head is rotated and available bed extension that comes with tool post extension when the bed is mounted low (34" turning capacity). The cage is now optional, so no paying for an option you never use.
Speed range is about the same 40-3200 in two ranges 40-1200 and 120-3200, indexing is 36 position, weight is listed as 375# in the manual. Looks like it comes with two live centers. One like the old version and one like the smaller 1221. Also has a faceplate, wrench, and tool holder. No mention of price yet.