Tecmo has franchises other than Monster Rancher. Though I thought the whole "Unlock your disc" thing where it reads any CD or DVD (ah, a good use for coasters!) was actually kind of neat. It reminds me of the days where I cut out UPCs for use with Barcode Battler, only less clumsy. It really didn't stand a chance against Pokémon, though.
Ninja Gaiden...well, I can't speak for the recent Xbox games. I always liked the original games, and one of my friends who also remembers those games would always cheer on Hayabusa when we played DoA2 but I personally think he looked like crap. Ninjas ought to wear more pyjamas and less jewelry. A rerelease of the trilogy on the GBA or DS would be nice, or new games based on the similar platforming gameplay.
The Dead or Alive series I guess is all right for a fighting game, but it seems to be getting overshadowed by its own overt sexiness. Eeew, Kasumi is overrated...but I digress. I heard that they were all gung ho for the Xbox because they supposedly support whoever's the best, technically. (I think it was actually just 'cause DoA couldn't compete on the Dreamcast and PS2 since there are many other fighting games on those consoles. And the jiggly boobs seemed to do well with the teens with insecurities who would more likely buy a tough-looking Xbox than the cute GameCube or the follow-the-crowd PS2.) But if they were supporting the best on a technical level you'd wonder if they are preparing to jump ship to the PS3.
Like any developer probably thinks, if the Revolution is popular enough and the controller is worth making a game with it in mind, then there's always the possibility.
With overly sexy DoA girls and a one-handed "Revmote"...no, it's too easy, I won't say it.