The web is buzzing about this. It strikes me as just some idle comments on the part of Cranston in response to a question from Banfield.
Would this be a good idea? It intrigues me - it would be interesting to see Walt / Heisenberg planning and succeeding in an escape from a prison hospital, but it seems like it would undermine the whole ending of the show. Plus, Walt was apparently near death from the cancer.
My opinion is, the show ended on such a high note in terms of quality that any re-visit to the characters would be a letdown. I certainly understand the temptation, but they need to leave it alone.
Breaking Bad: The Early Years
Hopefully, Cranston was just coming up with something quote-worthy to say. One of the best things about “Breaking Bad” is that it knew when to end, and did it brilliantly. It was a story with a beginning, middle, and end and now it’s done. Period.
Well, except for “Better Call Saul”.
I could see them coming up with some kind of project that involves Walter White at some point in his meth career that didn’t really make it into the show. Or WW as a side-player in another story about another aspect of the universe (though maybe not in BCS).
Breaking Bad Babies
They did that, it was called Malcolm In The Middle
I agree. I wouldn’t take it more seriously until contracts are being signed. And I loved the show, but I think it ran its course and they finished the right way. I don’t think there’s more story to tell or any particular need to revisit it.
I agree that the ending was satisfying (really the entire arc was satisfying, unlike, say, Lost).
BTW, I remembered the other day Vince Gilligan’s famous summation of the show as Mr Chips turns into Scarface and it occurred to me that just like the main character in Scarface, Walter White ended up blasting all of his enemies with a machine gun.
Well, if you’re gong to blast all your enemies, the toolbox is limited.
A joke alternate ending to Breaking Bad had Cranston as Hal in bed with Lois waking up from a nightmare in an “It was all a dream ending.”
You could continue with that idea as the Heisenberg personality gradually takes over Hal’s mind and he recruits his four sons into a drug gang. 
I saw that, also, if you caught all the variations of things that people put on Hank and Marie’s TV when they popped the tape in, one of them was Hal roller skating. I’ve always said there was a lot of Hal in Walter, at least when he’s panicking.
What good is it if Cranston comes back but the top-level writers don’t come back?
Who says they wouldn’t? Not that I believe for one second that this is happening. But if it did, they’d probably want to bring back the writers.
Because they’ll have their own projects. Peter Gould is running the Better Call Saul spinoff. Moira Walley-Beckett is creating her own show. The list goes on. If you’re a writer who was associated with Breaking Bad in a major way, you’re going to capitalize and try to start your own show.
There were five sons, actually.
So, what, would it be starring Walter White’s severed head on a life support system, masterminding a criminal empire from his secret lair, using his fiendish mental domination to control a cadre of goons?
…damnit, now I kinda want to see that.
If they proceed with this, I have the title:
Breaking Bad Idea
mmm
They Saved Heisenberg’s Brain?
I really want to see Walt Jr. spend all that money on hookers and blow.
I could see a season or two of a sequel that depicts the aftermath of Walt’s crumbled empire. Walt. Jr. getting the money, Skyler doing three years in lockup, Jesse being able to tell the world what went down (although that may not be necessary if the cops find the SDHC card in Jack’s clubhouse), and most importantly, the scramble to fill the void left by the sudden disappearance of the Blue. There are Cartel guys in Juarez who know how to make the stuff. There are going to be domestic producers who are going to try everything in their power to recreate it themselves. The cook is an integral component of meth culture. Meth cooks take pride in their product, and an all-out effort will be made by numerous parties to figure out the secret of Walt’s methodology.