Nothing is official as of yet, but the new upgrades to the Isotope will make it full compliant. We only had dispensation for their use of a jib instead of a spinnaker. However, now that they will be fitted with spi's that dispensation is void. The upgrade will be provided by the designers/builders, they are aware that the F16's will move to consilidate towards the current class rules. But as described the Isotopes are not excepted to be influenced by this at all.
As extra info : no isotope have invoked the dispensation after springfever 2002, so for this reason as well the dispensation is on the "clean up list
Wouter