I think they should bring back more fluorescent colors, spring loaded action effects, and over-sized noggins.

No wait, that's what killed things in the early 90's.
Okay, how about rogue mercenaries in various camo patterns. Sierra Gordo, Borovia, and those disguised mercenaries working for Cobra incomics 13-15.
Maybe a Kwinn in khakis?
And I agree, Joes in more realistic camo patterns.