Here are my 2011 predictions again, from the 2010 thread:
I'm hoping we see the Optimus Popularis during 2011.
As there are symphony orchestras in China, and the ability of computer chips to synthesize sound just keeps improving, I'm expecting someone in China to come out with a cheap keyboard that's almost as good as a Tyros 2, and pretty much sweep the market.
Oh, wrong kind of keyboard.
I think that the beam spring keyboard will return someday... but not necessarily next year. Sometime before 2020, though, I think it will be tried. It is possible, however, that the result will be as awful as the buckling spring keyboards made for a time by one Chinese company.
Keys with hemispherical depressions? Not likely; the seriously retro keyboard fan is just not a big enough market. Although I wouldn't put it past Fwiffo - or ClickClack - or whoever it is around here that does those things - to organize having a set of keycap replacements like that made for people here if there were enough demand. But out there in the real commercial world? I don't know how it could happen.