I see your point, and I too would much rather have Morrowind's system, but so many (very vocal) people came to this series in Oblivion I think it's very doubtful it will happen because it now seems the standard for Bethesda game to have fast travel because I think many of the developers think that's superior system.
There can be both OB fast travel and fast travel services in the same game. Look at Red Dead Redemption. It even had featured so you could actually watch you travel with the services, and press a button if you felt like actually "fast travelling" with travel service.
That's what I call an ultimate way of dealing with transportation and fast travel.
(Well not exactly ultimate, the actual fast travel like OB-style could have been improved, and interesting things like random enemy encounters during the travel services could also be done, but it still was much better than just having OB-style fast travel)