Problems with bringing it to other region is licenseing, that's why it took so much time to get it to Europe. By the time it clears for Asia, EA will probably pack the asian version with a shitload of DLC songs to compensate, like what their doing with the PAL release. But yes, keyboards would of been a dope addition. I doubt they'll do it because it would need to fit on both an SD and HDTV. Also on topic; GH4 drums look, uhh, more stable and "realistic" then RB's kit. And since RB2 isn't on the list any time soon with all the DLC concentration, people MIGHT jump ship if GH4 happens to have a badass set list. If they score a major music publisher too, then that might turn the tide from RB to GH4.