I think that one week of going ballistic will be more than enough to put the PS4 ahead.Its a prediction, of course i can be wrong. But the reason i say so is because of how strong the switch's hardware has been. As has been said by the experts, switch has been outperforming the PS4 all month and PS4 only had a few days of boost due to the absolutely crazy deals near BF.
Still props to Switch for being far closer than many predicted.