1.1 has little to no people (relatively speaking) with enough interest in the version's future and survivability to keep it legitimately alive.
GPP has a pretty good bunch of people who acknowledge what steps could be taken to help the game out (the game's future lies in 1.2 and on, not 1.1), such as competition.
However, in my opinion, I'd say that 1.1's on a straight path to death, while GPP is on a path to "we did a few things to revive the game, but not nearly enough. Oh well, dead game." But we'll see.