Got a friend to look into it:
Basically it's such a new format that the import plugins arn't out yet.
For FCPX Sony has an XAVC plugin that enables native editing but its only a beta which I can't find, was meant to be released in jan but still not out.
For premier there's a plugin called Rovi totalcode that works with XAVC. Bad news is its $349!! (PC only)