Is Netanyahu hinting towards a one state solution?

I read the article you linked to. All it is is a Jerusalem Day address that talks about, surprise, Jerusalem and how its being a single city instead of divided city benefits all of its inhabitants. To say that is completely UNcontroversial and quite frankly I'm not sure why you are trying to read things into it that aren't there, but then again, it wouldn't be the first time that has happened.