I also need to sort out the beginning of a secondary plot. Certain parts of that are amongst my favourites but some bits are a bit dry and mechanical. For reasons that will become apparent when it's finished, adding a minor transvestite scene could help make it more coherent.
However, my biggest issue is a cunning addition I thought of which could dramatically change the end. This character's introduction would mesh perfectly with what I've already written, but figuring out what to do with him is tricky. I think it'll be quite a fun challenge to resolve, and there's the potential for increasing the body count.
Fiddling with a chapter right now, but after that I'll start writing new stuff, and when that's all done I'll handle the finickity to-do list.