Since the concept of the saboteur isnt simple it really needs to be tested first before they hit the live server. But if nobody has access to the new class on the test server no feedback will be able to be gained.
So is it possible to provide the saboteur squads for free for the duration of the test server?
This could eighter act as a prove of concept for the new class or at worst an oportunity to avaid having to rework the entire class should some aspect of the class prove problematic / bugged to high heaven.
This also plagued the previous test servers were only a few players had been able to actually test some of the new content locked behind the paid/preorder content but this time it is especially critical