Well, Sammy is part of Fairy Tail, so she wouldn't be able to be in the Spirit team. Besides, would Ursa even be allowed to participate? He [i]is[/i] kind of the Spirit World "Guild Master". But I think that would be awesome :D Maybe Ursa could sneakily get on to the team by making everyone think that the Celestial King came back. Either that, or the Celestial King really will come back in time.