Nah, no way they beat PS3+360. Also, I think the Series S and the Switch are going to cannibalize the casual market that wants a cheap console that isn't the most powerful device in the market and that doesn't care about how old a machine is.
In 2013-2014, those people had to buy a PS3 or a 360 because there were no alternatives for them, now they have the Series S and the Switch.