Erm... okay, I guess.
Does Star Fox count as dormant? It had a new game recently, but its future is still very much in doubt. If so, I'd really want a new one, developed by Platinum again, except without Nintendo or Miyamoto's intervention this time. Astral Chain was my first "true" Platinum game and while playing it I came to realize how awesome a Star Fox game made by them could be, if only they could actually make it their own way and put their own creativity on it instead of being forced to work on some gimmicky shit. Ideally I'd want it as a sequel to Zero, effectively officializing that as a reboot and ignoring all the other games (and especially, characters) that came before it.
If it doesn't count, well, it's gotta be F-Zero. I'm not necessarily a huge fan of the series, having only played the SNES one, but it's a cool IP and it's depressing that it ended up like this.