According to Apple Insider, the Mac Mini has, in fact, not reached EOL status ("End of Life"), and that we should expect new models soon.
This is a popular product for Mac users, but financially not interesting for Apple. AI predicts it might finally evolve and receive new Penryn processors (up to 2.1GHz) as well as the "old new" shared memory graphic chipset GMA X3100. We could also expect the Mac Mini to support WiFi 802.11n, it could be a good marketing point for Apple to claim that all its hardware models supporting the new wireless format. Europeans should expect the price of the new Mac mini to drop significantly according to the new price policy from Apple Europe.
[translation by Linathael]