A recent trademark renewal for Super Mario All-Stars has started some speculation into a re-release or portable port.
Super Mario All-Stars, known in Japan as Super Mario Collection, was a compilation of classic Mario platformers with several enhanced remakes. So far these individual games have made it onto the Wii Virtual Console, but the collection hasn't (it wouldn't quite make financial sense!)
Some have speculated a DS/DSi release perhaps, or a remake in a similar vein to Kirby Super Star Ultra - the DS remake of the NES classic, Kirby Super Star.
What do you think Nintendo could do with Super Mario All-Stars?