it's not going to be a new console, it's going to be a new, possibly-gimmicky peripheral that only a handful of games will make use of, and only about 1 or 2 (official nintendo games no doubt) will do right. nintendo has been obsessed with puttin out silly peripherals in the past and it's only gotten worse on this console gen (worse as in more, the quality has actually been pretty good). I do think they should get a new console out soon though, the wii was a big hit a few years ago buy i think ppl who actually like playing games steadily have moved on to a diff console or PC.
and for u ppl jonesin for a Wii HD and some other form of super wii, have you not heard of emulators? namely, the Dolphin emu? It's to the point now where i can play almost all the wii/gc games that i loved (zelda, smash bros, mario kart, mario galaxy, etc) in sweet 1080p goodness, with an actual wiimote. get a ~3ghz+ quad and a GTX series card (or ATI equiv) and then google it, you're guaranteed to get faster and better results than you will wishing nintendo will get with it.