An old soul
Dunsparce and Sableye. Not much else to say.
What I do think we need is a Pokemon "Sunshine Yellow" remake of Pokemon Yellow for the DS. Now that would be epic.
HG/SS 2 cannot be done. The cartridge would be over-filled. Pokemon Diamond and Pearl 2 would be cool. But Cyrus would be in a retirement home, he has some aging disease if that's how he looks when he's twenty XD But it would be awesome.