Well then, Netflix had better hurry up and get Dish to launch a linear Netflix channel in HBO's old slot. There has to be a reason why Dish put a duplicate Netflix app on channel 302, when the Netflix app already had a channel number (370) in the premium movie range.
Ha. Netflix doesn't want to become THAT much like HBO. No, there will never be a live linear Netflix channel that is delivered offline, whether by satellite or by cable TV.
But going in the other direction, I do think we will see HBO start abandoning their live linear broadcast channels. Take a look at the new Plus and Max cable channel packages that AT&T now offers through DirecTV Now. Both automatically include HBO, but only three of its linear channels: HBO, HBO Family and HBO Latino. (Why those three? Probably because they're the three most different -- the original "everything" HBO channel, the one aimed at kids (no racy stuff), and the one in Spanish.) The Max package also includes Cinemax but only the original Cinemax linear channel, none of the others like MoreMax, MovieMax, etc.
It would be one thing if that was happening at, say, Verizon FiOS TV. But no, this is happening with AT&T's own new streaming TV service. And AT&T owns HBO. So I believe this tells us something about how they see the future of HBO and Cinemax: not so much as linear cable channels but rather as brands/pools of content to be streamed on-demand.