From Ben Volin's twitter:
@BenVolinPBP: Helmet: All white, white facemask, new logo, thick aqua stripe from front to back with orange trim on both sides
@BenVolinPBP: Jerseys: All white (or all aqua), with "Dolphins" on the chest below the collar (but not in cursive)
@BenVolinPBP: Pants: White, thick aqua stripe down the sides, orange trim
@BenVolinPBP: And either "Miami" or "Dolphins" on the tailbone, I forget which one
So there you have it. ORANGE IS BACK as a trim color. Here is a mockup that has been since posted.