Aethersprite is where it needs to be. Either configuration adds a sufficient amount of offensive power.
V-19 Torrent is uncertain. Depends on pricing. I kind of expect it to be closer in price to a Z-95 or TIE fighter (24 points for an Init 2? 25?). Does a TIE Fighter need more offense? No. It has numbers. If the Torrent is up around TIE Bomber pricing, 28ish, for example, it hopefully would have two missile slots.
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As to missiles in general, depends on what folks mean by better missiles. I don't necessarily think there need to be more powerful missile upgrades. I think the missiles themselves need to be cheaper . I like that missiles are distinctive from Torpedoes, tending to be 3 dice and more charges, rather than 4-dice like most Torpedoes. I know Homing and the upcoming [Plasma?] Torpedoes break that mold, but still.
I feel like Ion, Cluster, and Concussion at least could go down a point, maybe Proton. Homing and Barrage seem fine where they are. I'd love for missiles to be cheap and with a middle power level, while torpedoes are expensive with high power.