Looks like the HTC ChaCha is going on a tour if HTC Germany to be believed. It seems that on their Facebook page no less that they have a list of three places (Dortmund, Germany. Wien, Austria. Zurich, Switzerland.) where they will be hosting Facebook centric events. HTC events normally prelude the imminent release of a phone much like the London launch for its HTC Sensation.
These events do not mean it wont be coming out to other markets first however. Expect the phone to come out in the UK first then to other European markets. It has been shown as coming to Vodafone for a while after all.