Idea sharing can be dangerous. What if someone other than JB decides that THEY want to write a fantasy/detective novel, and they start using ideas from this board. A shitty thing to do, but some people are that way.
I'm not saying we can't speculate as to where character development may be going, just that we shouldn't be trying to provide story lines.
Hell, I've loved the books this far, and they only get better. I think JB is doing pretty damned well