Battle Frontier.
Yeah, that's right. Break the mold, start a generation with a new frontier (no copy cats, either), don't wait for the third installment, I want a big one from the get-go. Add more facilities in the third version, but boy what ligaments I would donate for a brand new frontier. The sinnoh frontier was fine, drooled playing the Arcade and enjoyed the other facilities, but I don't honestly want to deal with a Battle Tower next year. Players have cracked the code with Choice Scarf Trick + Set-up, I want diversity from the get-go. However, that depends on what new moves and abilities are introduced, maybe it'll take us a while to expose the system / tower. :P
A frontier maniac can dream