The article gives some insight on how medical tourism industry growth from a UK perspective and how it might have reached the maturity phase. The article claims that many investors lost money amid the hype of the potential of the market which did not pan out and the protectionism. However, those that understood the market and were best equipped, informed and organized were successful. Even with the changes in healthcare through ACA, the economic downturn, and rising costs for travel, it seems there is still the demand to provide affordable healthcare and thus payers and goverments are having to reconsider cross boundary options for healthcare. The article states that this future model might be more regional rather than global.
http://www.imtj.com/articles/2011/blog-after-the-gold-rush-40165/
http://www.imtj.com/articles/2011/medical-tourism-trends/
In my opinion, we might be going from one growth curve, to another as in the diagram below: