We'll find out in 2018 apparently.
After that it's unclear.
Just because I don't see how they could do it while still keeping it nice to type on. And of all companies, Apple seems likely to do so successfully if anyone is even capable of doing so.
And if it is possible, I want to see what the heck it would be, and who would see it coming? I mean, heck, they already went to the opposite of what people kept saying they needed on their mice / trackpads - now there's no button.