With a new expansion/overhaul/whatever on the horizon, I looked over the current SK gear catalog to try and find something that could be improved. Here's what I came up with.

Redesign Swiftstrike: Nerf the 3* version down to ASI low, then release strong 4* and 5* version that go up to medium and high. Final health should be somewhere around the health of the average 4* shield, maybe a little less. The increased strength will make it more useful in T3, while still sacrificing some defensive power.

Other sword and gun ASI/damage shields: more shields like the BTS would also be a nice touch, to boost guns and swords a little bit without having to really on swiftstrike. Medium or low bonuses ought to do it. CTR shields might be a good idea, might not be.

Bombing shields: I don't know what bonuses bombers would find useful, but I'm sure they'd also like a shield that helps them out.

Nerf Chaos: It's overused to point of absurdity. It shouldn't be made worthless, but it does need to be far weaker than it is now.

Sprites: I've heard Drakon and Sera both need buffs (not sure if that's true or not). More sprites might also be a good idea.

Hybrid Support: It's a popular playstyle, and its sad that most of us are forced to build ad hoc loadouts and really on trinkets, UVs, or Chaos to match the performance of dedicated sword/bomb/gun users.

Don't do a TF2 style rebalance: Team Fortress 2 revamped the stats of everything in the game a few moths ago in order to reorder the metagame. Don't do that here. I can get a new weapon in TF2 in a few hours, getting new gear here requires weeks of effort. If you do decide to rebalance everything, give older players vouchers for new gear so that we're not stuck with awful loadouts.

Release the Shock Troika: Its a troika with shock damage. what else can I say?

Create a Shadow weapon with fire damage: Even Waffle-"I disprove of this idea"-conecake thinks its a good idea.

Bring Back the Tortodrones: because they're awesome!