Level 5Bada 2.0 should be coming any time now. It's been officially announced by samsung that 2.0 update will roll out in Q4 starting from Europe. Some devices will not get full featured update (like lower end models), but the rest, including Wave II should be fine to run 2.0.
Level 1As per the latest news, bada 2.0 for older device will come in the Q1 of 2012. So, if you can wait then its good else sell your bada and jump on any other phone. :(
If you're curious what's new, here's a video for bada 2.0 features: http://www.meetgadget.com/gadget/15279/Samsung+Bada/videos/video/EyHaUhtFAEk