A sequel to Magi-Nation that 1) Isn't only released in Japan, 2) Doesn't suck eggs, and 3) reinvigorates the brand and makes people care about it.
M-N has been called "The Firefly of Games" and it's not an unfair comparison; it's a critically-acclaimed darling with a small, loyal, battered fanbase that hasn't been treated well by time. The only bones that the M-N fanbase has gotten recently was the crappy-ass MMO that was about as engaging as wet toilet paper, and a TV series that was as faithful to the games as strapping a live grenade to your chest is beneficial to your health.
If a studio were to snatch up the rights to M-N (it's gotta be hella cheap right now, considering how poorly the aformentioned ventures went), and made a faithful, fun-to-play, and well-marketed revival, I'd hail them as heroes and name my firstborn after them.