In my reading, the CAA states it presently has no jurisdictional control over such operations and therefore Part 115 should be implemented in the interest of safety. So, at least some changes to any such current activities may come only after the CAA establishes their regulatory authority. Interestingly,they note that "A recent CAA study applied the social cost of accidents to the actual level of flying activity, estimating the average social cost for adventure aviation activities (both commercial and recreational) to be approximately $61.00 per person per hour of exposure (significantly above a safety target level of $13.00). In comparison, the average social cost for air transport operations is approximately
$0.10c per person per hour of exposure." They assign a "VOSL" of NZ $2.8M to a single loss of life (social cost = value of a statistical loss of life)!

The Part 115 proposal was issued in 2011. "Objectives: The primary policy objective for government action is to enhance further
improvements to aviation safety and to provide a reasonable level of safety assurance to passengers engaging in commercial adventure aviation activities. This can be
achieved by requiring commercial adventure aviation operators to manage risk-based safety systems, processes and procedures with an appropriate level of monitoring and
regulatory oversight by the CAA." Existing operators will be given time to apply (18mo in the case of glider ops), while new operators in the category must have all docs completed/approved at the time of application.