I have since confirmed this announcement with Mike Adams, president of Moog Music.
Mike also kindly pointed me to the registration page for their newsletters. I've signed up, and I encourage anyone interested in Moog's instruments and news to consider joining too.
While it's disappointing to see that we'll all have to pay more, I think the positive spin on this announcement is that demand for the Etherwave Pro has obviously expanded significantly. This is a good sign for Moog Music, "world thereminization", and heck... the world economy as well!