I specifically asked this on the stream to them and they stated , they are importing over the first roster update. He said unless there was significant changes (which I dont think would be beardless Odor & Shogo, if he's added) that they would not start over. He also seemed to know there wasn't going to be anything significant enough. Im not sure what facescans there is even to add other than Puk/shogo and foreign players from this year.
They did seem to elude to the fact that they would build their next roster release over the newest base roster if there are changes.