The PS5 would need more or less PS3 level sales for 2021 not to beat the Wii U, seems unlikely. The Xbox is more of a question, we really don't know what it will sell. The Xbox One has sold decently, but never really well in any one region, and MS' gamble with possible driving a slight wedge between developers and end user in releasing a considerably weaker option for their fully digital alternative has yet to show results. I think the Xbox Series S will prove to be more a problem than a boon to MS, when all is said and done, and that they might have trouble delivering enough Series X units to those Xbox fans who want the best version of their games.