Palkia Model

Probably not. It's far away. Some are close (Heatran, Groudon), many are middle distances, and some, like Palkia, are far away, so you have to throw hard to hit them.

I wouldn't be surprised if it does get changed at some point (Palkia's model size is tiny compared to what it's height should be), but it could be awhile before that happens. They did it for Rhyperior (twice), Giratina, and Heatran, so I imagine Palkia will get similar treatment eventually.

I'm sure that it will be changed to a larger model, but probably not while it is a raid boss. I'm sure as soon as February is over they will fix his size.