The absolute latest news that I have found on the Wave,is that Sweetwater.com expects it to arrive in thier warehouse the week of November 18th.
Thier updates on upcoming gear have been reliable thus far,so this is news to confidently look forward to.
Of course,I expect the release date of the Wave to be different in Europe,but this news at least gives people who are abroad,an indication that it will be available this year to all.
I don't plan on buying a Wave myself,but I would love to tinker with one in a music store.