Yeah, so 9th Wave came out and finally I can see some hope for Rebels.
I want to share with you my Rebel list that did really good at recent store tournament (placed 2nd but lost only because of worse difference in small points, all games ended up with wins).
The idea is to use Miranda as heavy hitter and late game monster. Also thanks to Homing Missiles and her special rule she works out like a hybrid of Wes and Corran.
Of course Biggs has to be in the list, ordnance is still staple of current meta.
And new, great toy, ARC-170 with Braylen Stramm as pilot - this guy does a great job, I confirm that he dish out a ton of stress, and even when he dies enemy usually is so stressed that effect of this is felt way into late game. It is especially deadly against Defenders - it really hinders their offensive and defensive potential.
Here is list:
Miranda - 42 pts
Homing missiles
Extra Munitions
Chopper
TLT
LRS
Braylen Stramm - 32 pts
R3-A2
Gunner
Tiitle
Biggs - 26 pts
R4-D6
IA
Obstacles - largest asteroids.
I really think, at least until HotR comes out, this is the strongest all-round list that Rebels can field. There is only one minor fault of this list - rarely does it wipe out whole enemy fleet (at least from my experience) so games are often won by smaller margins.
Nonetheless this list is still weaker than strongest list in this meta - namely 2 Jumpmasters & Partybus.