Yes - Apple announced to resellers and the press in late January 2013 that as of March 1, 2013 the Mac Pro will no longer be sold in the EU.
There are several articles explaining why and the rumors surrounding what may be next:
Whether you choose to interpret the news that Tim Cook has emailed one customer as to whether Apple has planned a new version of the Mac Pro or perhaps some other new computer or service that will make people who wanted to buy a Mac Pro happy is open for debate.
Since Apple hasn't announced anything to take it's place, and heck, Apple isn't even putting a notice on it's web site about the withdrawal and instead just removed the "buy now" button and removed it from the online store is all that we on the outside can see today.
It's unclear if you can import the machine with the new regulations in effect, but I would presume the used market is unaffected and you can still seek repair service for existing and imported Mac Pro (for a while at least) but no longer buy a new one from Apple while within the EU.