I still don't know what to make of it. Seems somewhat vague. He might just be busy, and can't afford any distractions.

Food for thought, the only reason QuadForce got updated was because of a user initiative donation fund for it.
(for those unaware of that whole situation, basically, one o those with access leaked the alpha of QuadForce, and he decided to can the project because of it, until 8bitwaluigi started talking about starting a donation fund to get him to finish it)
I guess there isn't anything to do but wait and watch. I honestly don't see him completely canceling the project, and while I hope he doesn't, It's not out of the question.
Really I just feel like all these people who are bitching and moaning about him not working on it don't realize how hard coding is. It's not easy stuff. It takes time and dedication to write code. I'm starting to learn it myself, so I would know. Working on multiple projects is very stressful when it comes to this stuff, and people need to understand that.
From a moral standpoint exclusively, saying one thing and not following through with it is wrong, especially when it's for a lot of people. If I say I'm going to do something, I generally follow through with it, even if it's not too important. If it ends up late or delayed due to unforeseen circumstances, that's just the way it goes. The only way I would flat out stop working on it is if the job in question lost it's relevance enough to no longer warrant being done. But again, that's just my moral standpoint.