My guess is that new mini in it's default config will be inexpensive (and hence Apple will not use expensive components).
The goal of the mini is to transition Windows users.
Also, Apple has been trying widen its market by lowering it's prices.
I think alot of folks are wishing that Apple would come out with a more powerful machine ...quad processor, lots of disk, great video card, etc... just like a display-less windows machine.
I'm betting on lower prices - $499 OSX machine - mediocre components, but still good enough for stuff like iLife, iWork, iTunes, etc.
P.
That would be nice - put it back to the price it was 5 years ago, in the PPC era! The excuse for the price hike at the time of the intel switch was all the "extras" it came with; the remote, wifi, etc. Now they don't give you the remote, and if you want to plug into a vga monitor you will need to buy a $30 adapter that came in the box free with the $499 PPC model.
What I'd like to see is a mini minus the optical drive and with a single (3.5 inch?) HD in the same size case, or possibly just a bit shorter. The case should otherwise keep the same dimensions. Sell it for $429, and set it up so it can use the DVD drive from the MacBook Air.