Probably a bit slow on the response, as the subject had been taken up elsewheres.
The new enemies they are talking about are supposedly new "bosses" (not sure exactly how they apply the terminology). With new icons to identify them. Im hoping attacking them sets you into a different area (like the Pearl BB) and allows you to fight. This would help to solve the obvious demand there will be.. at least at first.. for these new 'bosses' once implemented.