If you're happy to instruct - go for it - schools are desperate for any instructors and doubly so those with some experience. Unfortunately, it's a long process to multi IFR instructor, which is where it gets interesting. Not much GA around the southern cities - if you want that work, you might have a bit of a search or go north (expect minimal GA money anywhere), though people are moving into airlines so quickly that charter/tourist operators might be interested in a stable & mature person.
Don't worry about Part 91 - likely to be years away, and won't make much difference. And you don't want to be amongst the first round testing out the new exams when Part 91 does come in!
It will be a slow process and you'll be starting at bottom of the pile, but if you can handle that, go for it.