We're working on a bunch of things at once. There are efforts to develop a homebrew SDK, which is happening on
WiiUBrew with API documentation and in our
libwiiu repo, work on a new browser exploit (which is private), rewriting Chadderz's Cafiine tool, and documenting file formats for game modding. Homebrew and game modding are all possible right now, it's all about getting something that programmers and modders can use, so they can make things that the public uses. As for whether we're close to an actual product within that time, yes, and probably before the 5 month mark.
Now if you're wondering whether our exploit will help with backup loading, definitely not directly. We don't have any interest in it, and won't be releasing the kernel exploit until after Nintendo patches it.