More unique shields, as well as some seraph shields that are worth it.
I'd love to see more unique amp, maylay or absorb shields. Perhaps an adaptive + maylay, amp + maylay, or amp + absorb or something. An absorb shield with a percentage elemental resistance (like the neogenator) would be great.
On that note, I really think that the health regen on the neo and evo shields need a boost. At lv61, a couple of hundred HP per second does squat.