I think another trend is less "in vitro" and more "in vivo" leadership development. Our practice is growing quickly I believe because we're developing leaders "in the business" not only in formal learning sessions but in large scale leader forums and in teams. I think businesses will spend less on big academic programs that take leaders out of the business and out of context The real issues that emerge are more engaging than case studies.  And instead of leadersip development being seen as time away it can be seen as dedicated time on the problems at hand.