An interesting read. I don't think we will see a ton of new entrants into the field. All the news is negative. Even this article by the NAR. If I were thinking about becoming an appraiser, I would move on from that idea after reading that article.
All the ideas about alternative tracks to certification, USPAP changes, use of trainees and so on all miss the mark.
People are not coming into the field because the perception is that appraisal work has a bleak future, offers very little stability, no benefits and low pay. The upside many people like is the self employment aspect. But, that only goes so far.