I'm not sure if the Codex is in it for the long haul or not, and I think that's half the problem with it. I often see things that I want to fix or add to, but I'm hesitant to contribute if it is going to be retired in favor of handbooks or some other alternative.

From what Jane was saying in the latest episode, i got the impression that the Codex was going to stick around and that the handbooks would be in addition to the Codex. Which would be fine in theory, they could serve different purposes.

But it seems like as a whole, the Codex is already the most neglected part of WordPress, splitting attention between that and multiple handbooks could cause it to suffer even more.

I don't think the current wiki is that bad, lots of good info, just needs strong editorial oversight to clean and organize it. I'm ok with a wiki, handbooks, or just about anything though. As long as it is well maintained I'll feel more confident contributing to it.