well if console naming confusion is anything to go on then definitely a wiiU...That reminds me. Was googling "one x release date" the other day and Google's "People also asked" section kinda backs up that fear.
Top google search is "Is there a new Xbox coming out in 2020?"
Others are "Which Xbox is best?", "What is the new Xbox called?", "Which Xbox should I buy 2020?"
It is absolutely not a problem if Microsoft markets the systems properly, but it's a lot more complicated than it needs to be.