Not seen one, but there doesn't appear to be a massive difference over the CE6000, size for size. All key features seem the same - speed, force, acceleration, accuracy. The ARMS feature (registration mark detection) has been upgraded from v.5 to v.8 - don't know how significant that is.
Price has gone up by about 15% (UK) and you still have to pay extra for a stand, and then pay through the nose for a media basket (essential for longer cut runs). Media stocker at the back still looks arse.
If you already have a Ce6000 in good working order then probably no need to upgrade. If you are buying new, using a junker or upgrading from a smaller cutter then you are best going for the Ce7000, simply because it is the latest model - unless you can find a significant discount on the older model.