I would love to see all the Mata colors come back. Would also love to see newer textures on shells (like shells with a sandy texture or a leafy texture) as well as more ccbs frames.
I would also love to see melded colors as well. We've only gotten it with add-ons, but not to the shells themselves.
We also need this piece in a shorter form:
So we can create our own add-ons for the ccbs system. (Imagine putting two in a Vorox armor piece and simply clicking it onto a shell, rather than make some awkward technic build.