According to this FAQ on SSL’s Support site, the famous console maker has no plans to port their fantastic Duende Native plugins to AAX.
However, I have heard from an SSL representative that if enough customers request the move to AAX via their customer support contact channel, they will seriously consider it.
So if anyone out there wants to see this happen, go to your SSL account and make a request through this page. If you don’t have an account, but want to see it happen, create an account and at the same time get a free demo to try out the current RTAS versions.