The current version might work to some degree, but certainly not perfectly.
Impelmenting the necessary changes for full DK2 support might be possible before the DK2s are actually shipped, depending on when Oculus releases the updated SDK. So more probably than not vorpX will be fully DK2 ready around the time the devkits are shipped.
For testing the changes DK2s are necessary, of course. I ordered two DK2s right after the announcement was made, hopefully they will arrive here as soon as possible.