My 2 Cents
7- Allow more than 256 of X crafting material on the craft storage pane in the bank. Heck make it an upgrade you pay gems for.
8 – Warhammer 40k like space marines!!! Come on, give me a rifle skin that looks like a bolter and a sword skin that looks like a chainsword and some really bulky looking armor and the ability to put crests on the shoulders.
<sigh, i know itll never happen, but hey one can dream>
9- Engineer pets… wouldnt it be cool to have a couple small clockwork things hovering around your enginner like a pet. Mesmer could have little balls of light or something.