You like to look at insignificant details and you missed some points IMO. Yuna with long sword or Yuna with guns: the essence of the game would probably remain the same if she used either of them.
And btw, haven't you looked at the images maybe? Don't we have a "third character" with the long sword yet? What would be the point in having another one with a long sword? I won't mention here the possible meanings of the long sword thing though... You guys better go and read some low quality psycology manual for this, thing that probably Nomura already did
Not to sound 100% negative, but this is my opinion, and I don't need to see the game to say this game looks really corny and filled with stupid stereotypes (also regarding some of the other characters) from what I can see.