I'm not sure if even the people at Microsoft believe this but they're probably hoping for that scenario. To be honest I don't think PUBG will be as big on consoles as it is on PC but I could be wrong. Even then I don't see MS doing the numbers you suggest. Keep in mind I own an Xbox One and will be upgrading to a One X and I still can't see this happening. I think sales may spike around launch and they may hold at a respectable number around the holidays due to sales but then reality will kick in.
Love the product, not the company. They love your money, not you.
-TheRealMafoo