Lots of obvious things are untrue. "Obvious" just means "reinforcing one's preconceptions." It doesn't bring one any closer to the objective truth, and can often lead one farther astray. So one should always distrust the obvious.
Some things can be obvious because it's the logical thing to do, and it would make many fans happy.
I think most people are just saying that it's possible to do this, and it would be cool. I don't think anyone is saying that it'll definitely happen.
Personally, I do think it would be very cool.