Total speculation...but I wonder if a new Mini does come along if they'll use the same 7.7" square form factor as Apple TV and TimePort instead of the old 6.5" size used by existing Mac Mini and Airport Extreme.
This is a very interesting thought. It represents what one might see as an internal conflict of Steve Jobs. Uniformity versus Miniturization.
How nice would it look to have a stack of MacMini with TimCap? or
tv with TimeCap? Admittedly the MacMini and
tv don't go so well together (if you have a Mini by your TV,
tv is redundant technology), but the other two combinations are perfect pairs.
On the other hand, unless Apple can say that they're shrinking the Mini, I don't think they'd change it. This might lead one to guess that they'd cut the optical drive. For a desktop computer, this would be a totally irrelevant move. Optical drives are so cheap, take up so little space, and are used frequently enough that adding one is pretty much manditory for most practical purposes. Cutting one from a portable? That makes sense for some people. Cutting one from a desktop? That makes little sense. The goal of a desktop computer isn't to strive for miniturization. It's to provide users with an un-compromised computing experience. Today's MacMini offers an *acceptable* amount of computing power for most users, and therefore is an *acceptable* desktop. A MacNano (as some have coined it) sans optical drive would alienate too many people and drop below even the minimum status as a bare-bones PC.
So the solution to this (IMO) would be to redesign the Mini to match the 7.7" form-factor, give it a 3.5" HDD and full-sized RAM (instead of SO-DIMMs). That'll effectively use the added volume, and give Apple enough fuel to run the RDF to claim back those who are put off by the idea of un-miniturization.
Ideally, in my mind, would be to grow the Mini in the z-dimension as well, to give it enough space for a desktop-grade CPU and dedicated graphics, but as has been precisely stated thousands of times before, these requests (more like pleas) seem to be nothing more than a wet dream in the minds of countless prosumers like myself.
When will Apple realize there's another demographic that they're missing entirely? It's not 1997 anymore; Apple doesn't need to worry about a bloated product line. They have their financial s*** straightened out (and then some). It's time to expand the line, Apple. The prosumer/advanced user crowd has been left high-and-dry for far too long.
-Clive