Don't forget that the new Seeker Drone (Exocomp) has "MACO" on the hull. Look closely. I wouldn't rule out a MACO bundle. Just think; you'd be able to dress up a few of your bridge officers for your own MACO squad!
Extra BO slots would sell from the C-Store like hotcakes, Cryptic.
This has been my wish from day 1. Wanted them over the regular Enterprise uniforms. It would really be an awesome uniform for a BA security department when the DOFF system goes live.
It looked like they were testing out some tech for this set when they released the mercenary outfit, but alas, nothing new so far.
I would really like the mirror set (with tactical vest) to come out at the same time.