How in the hell was it dead as a franchise?! It was still popular, last I checked. At least popular with the people who enjoyed it for what it was. The devs still wanted to make more of it. The only problem was when Interplay kicked the bucket the rights were auctioned off and sold to Bethesda because they had deeper pockets.
And even then, if all of what I just said is wrong, Fallout is still dead to me. It died the second Bethesda bought it. This is no longer Fallout, it's Rage lazy edition. Sure, it had a sweet swan song with NV, but it's finally given up. The franchise that we all know and love has been killed. And now it's a weekend at Fallouts situation with Bethesda toting around the dead body trying to convince us that it's still alive.