I don't think CW in the line means it was necessarily for the CW animated line... It may, but that list had things from all over the place, different eras, etc.
I honestly don't see anything animated about them really... They look very much like attempts for that "straight" pose look Legends is going for... I dunno. They seem no more animated looking than TVC Ahsoka or OWK, or Ani to me I guess, but look at the new Clone sculpt for TBS and how people thought his skinnier legs looked more like the TCW line than before... I think it just looks taller myself.
It's possible those CW figures on that list were intended to be realistic all along, in the realistic line... Hasbro is totally willing to throw away existing toolings though, but who knows. I see what you're saying with it being on that list then coming to the line, I just see it as they intended it all along to be what we're seeing, and it's tough to take an animated looking figure prototype and "dumb it down" to the under articulated Legends realistic looking figures ultimately. I figure it's possible those were just figures they planned immediately once they had Legends 5POA mapped out.
I recall them saying they would look at more TCW figures but they'd be all realistic... Then when 5 POA came to light that we were definitely getting that line, they said that's where TCW was going to go if it was going to turn up anywhere, thus Maul of course... And now OWK's (because, well, OWK). Sounds like they are going to throw us a bone with that Rex they had prototyped for TVC but that was clearly done already and tooled whereas the rest, who knows.