At the moment there is alot of work in the training side but also bear in mind that no school will commit to guaranteeing you income after your license.
Instruction is a very specific task which requires particular attributes in its trainers. Not everyone can teach and even if they can teach, not everyone has the personality and aura which inspires confidence in students and motivates them to progress.
I know of helicopter flight schools who are dying for instructors! But again, quality guys!