Equal use for equal arms!
If they can't give us separate left and right gloves and arms, I am all for this.
I'm not entirely sure, but certain alternating-hand powers aren't just a case of mirroring the animatic, some powers change hands but the feet remain in the same place.
But considering there are much less one-handed powers than anything else, at six animations (Three genders x Standing & Flying) a power, it's a little less expensive than other suggestions I've seen before. If we're only considering Kinetic Melee and Dual pistols, it would be a relatively small task to consider.

Home server: Victory
Characters on: Victory & Virtue
My first 50(0)! 18/11/11
@Oneirohero
I'm not asking for any animations be mirrored. Please reread.
What shall claim a Sky Kings' Ransom?
PPD & Resistance Epic Archetypes
My apologies, I didn't mean to say it's mirrored or anything.
I'd like to see more powers have switched arms if they fired single-handedly, it improves the flow immensely. The first two super-strength powers could do with these on some of their alternate animations.

Home server: Victory
Characters on: Victory & Virtue
My first 50(0)! 18/11/11
@Oneirohero
Will try to keep brief:
Certain powers have alternating left/right animations. To the best of my knowledge, they all share the left/right counter. Yet to experiment with only known power with 4 cycling animations (Pistols). Presumably, same mechanism used to pick kick and shield slam with shield out. Tangent. Getting back on topic.
Other attacks only have animation for one side. My suggestion: Make attacks that only use one arm "count" for purposes of left/right animations.
Example, in fact, the example that is the reason for this train of thought: Kinetic Melee's Body Blow is a right-arm only attack. Quick Strike has alternating left and right animations. Body Blow followed by a left-arm Quick Strike looks gorgeous and flowing. Body Bow followed by a right-arm Quick Strike looks... not as good.
Solution: Make Body Blow set the character's left/right bit so that it counts as if he just performed a right-arm strike.
Result: Guaranteed that whenever Body Blow is followed by Quick Strike (or Brawl), it uses the best-looking, left handed animation.
Extrapolation to other one-armed attacks left as an exercise to the reader.
Estimated change result: Minor but pleasing graphical improvement.
Estimated change cost breakdown:
Art: None.
Design: None.
Balancing: None.
Code: Unknown. Based on implementation of left/right bit, estimated trivial to moderate.
Note 1: Jab is left-only or right-only based on animation. May require additional nontrivial code to tie into custom animation or, conversely, not treating it like a one-handed only animation in the first place.
Note 2: Barrage and other attacks using its animation could be considered right-only, since the right strike is definitely later.
What shall claim a Sky Kings' Ransom?
PPD & Resistance Epic Archetypes