I haven't read the press release, but does it really say that the game will be VR only? If not, I highly doubt that that will be the case. As GreyFuss points out, Cyan already have a large fan base, and I'm pretty sure that most of these players don't use (or aren't even interested in) a VR game.
That a game is presented as a VR game doesn't necessarily mean that it doesn't come in a PC version too. Carbon Studio's Alice VR, for example, plays on PC monitors as well, and it even has "VR" in the title. It couldn't be a budget issue either. Making a VR game might be expensive, but building a version for PC monitors won't be a big stretch for Cyan.
Besides, judging from the demo video, the game looks terrific on a PC screen.
That being said, if the game is released for PC monitors, it's highly likely that the minimum requirements will be quite demanding.