If they can't bring back fighters, or PFs, or missiles, or T-bombs, why not add some variety to the standard shuttles to give a quick stand-in. I don't think you can sneak mod shuttles into a multi-player but would it be possibile to add some shuttle options to a next patch?
Fighter: upgraded weapons
PF: REALLY upgraded (like in the previous posts)
Missile: an option on the controls to ram and explode own core
T-bomb (captor mine): an option to proceed to a spot and detonate with a proximity sensor
Assault shuttle: loose some weapons and power in favor of Marine capacity or transporters
Weasel: loose weapons and power in favor of ECM suite
Decoy: since this is more TNG, a holo emitter to mimick other vessels
(could be spoofed with only a probe or weapons hit)