As on FI(H)R...AFI(H) in none JAR speak ibelieve there are not enough QHI's to go around. With a NVQ going and the introduction of the relatively new JAR PPL(H,), it has taken the helicopter training industry some to adjust. I belive (taking the two schools I work for as a yard stick), that we are over the worst now as far as its introduction goes. Schools now feel more confident in discussing the 'new' JAR PPL(H) to prospective students.
I think the long term picture should be good if you do go the instructing route - the cost of getting there on a self sponsor ticket seems to be more and more unrealistic for too many people who would otherwise have considered instructing under the old system.
I assume that you've already got 300+ hrs and a CPL (H) - the PPL(H) +200hrs P1 before instructor course route died with the intro of JAR -grrrrrrr!!!) Good luck!