I think Hasbro was onto something with the Rebel Pilots 3-Pack that came out in 1998. I would like to see more different and generic pilots made. And to help increase the value and fill that giant saga bubble, I think each one should come with his own unique Astromech Droid. Removable helmets are also a must.
Here is what I was thinking of:
X-Wing Pilot - generic no name guy, they can even do the 50/50 face sculpt like they are doing now with the Endor Rebel Trooper.
Y-Wing Pilot - grey flight suits we saw in ROTJ, 50/50 face sculpt
B-Wing Pilot - human version, red flight suit, 50/50 face sculpt
B-Wing Pilot - Sullustan version with the correct color red flight suit
A-Wing Pilot - 50/50 face sculpt
Snowspeeder Pilots (all with removable helmets):
Zev Senesca (Rogue 2)
Luke (with blaster and lightsaber to recreate his landing on Dagobah)
Generic Pilot 50/50 face sculpt
Things not to do:
action poses - these are pilots we're talking about here
gimmicks - we've covered why these suck many times over
"beefed-up" bodies - hasn't been a problem recently but with Hasbro you never know, this trend ruined what could have been some cool figures like the A-Wing Pilot, TIE Pilot and original Luke in Snowspeeder gear from the POTF2 line.
And while this thread concentrates on Rebel Pilots I would also add that we need a newly sculpted TIE Pilot without the heroic proportions and a more accurate looking flight suit.