Shame, I liked Brock's HGSS clothes.They're wearing their DP outfits.
Why are people wondering where the Ambipom/Swampert speculation is coming from? The first post in this thread says that Ash's Buizel and Dawn's Ambipom are mentioned and that Brock's Marshtomp seems to have evolved. I know the Ambipom thing could be taken in any given context at this point, but THAT'S where the speculation is coming from. It's not random.
Anyways, back on topic...
I wonder if they're giving them new clothes, I sure hope so.