If you look at the End's mailorder site under "exclusive labels," you will see Black Mark listed. It doesn't mean that only they stock BM titles obviously, but there is some sort of distribution deal in place if memory serves.
The question is more one of when TER will have Crimson II in stock. It may well be on/slightly before the European release date. However, they might do as they did with Nightingale and release it as part of their own catalog... which can delay things a tad. Still, I'm in touch with their mailorder dude a great deal these days so I'll ask...