Want: 5
No cuts!
Likelihood: 4.2
With Sakurai using Brawl's data and Lucario being a fairly popular and unique character, I don't see his exclusion being overly likely. In fact, I don't see Sakurai choosing to cut him at all, the only way he wouldn't be included is if development runs into time constraints and Lucario is chosen to be cut over some other characters (which I could see happening -- I don't think he has the highest priority). How much Game Freak stresses another (presumably newer) character plays a factor, but I believe Sakurai will try and make the effort to include Lucario, Mewtwo, and whatever the character they might be pushing may be (if the situation with GF is the same as it was for Brawl).
As for Zoroark "replacing" Lucario as Lucario "replaced" Mewtwo being used against Lucario? I could see why some casuals might think that, but anyone whose made an effort to learn about Smash should know that excuse carries no weight, Mewtwo was planned for Brawl along with Lucario and Lucario (and probably Mewtwo) will be planned along whatever new character we might get, and though there's a chance he won't make it, I'd say Lucario's chance of returning is fairly good.
Nomz:
x10 Marth
No cuts!
Likelihood: 4.2
With Sakurai using Brawl's data and Lucario being a fairly popular and unique character, I don't see his exclusion being overly likely. In fact, I don't see Sakurai choosing to cut him at all, the only way he wouldn't be included is if development runs into time constraints and Lucario is chosen to be cut over some other characters (which I could see happening -- I don't think he has the highest priority). How much Game Freak stresses another (presumably newer) character plays a factor, but I believe Sakurai will try and make the effort to include Lucario, Mewtwo, and whatever the character they might be pushing may be (if the situation with GF is the same as it was for Brawl).
As for Zoroark "replacing" Lucario as Lucario "replaced" Mewtwo being used against Lucario? I could see why some casuals might think that, but anyone whose made an effort to learn about Smash should know that excuse carries no weight, Mewtwo was planned for Brawl along with Lucario and Lucario (and probably Mewtwo) will be planned along whatever new character we might get, and though there's a chance he won't make it, I'd say Lucario's chance of returning is fairly good.
Nomz:
x10 Marth