I plan on getting a 50th anniversary as well. I'd love to see a dark green, like Fathom Green from the 1st gens. The new C7 color Lime Rock Green looks like a good match.
I'd also love to see hideaway headlights, but that's not going to happen from the factory. Government regs have killed that, that is why Corvette had to ditch the flip up lights when the C6 came out.
Factory houndstooth would be cool too! Or at least make the 5th gen seats fit in a 6th gen so I can keep my current interior!