Since the Kalos Fossilmons just got released with their hidden abilities, are there any Pokemon left that we're waiting on being legal?

Closest I can think of would just be things that already existed, but with pentagons. What do we need out of those?
>a few event legends (Mew, Meloetta/Genesect, Manaphy, etc)
>most hidden ability legends (Pic related, multiscale and pentagon when?)
Is that really it?

Are we that close to finally being able to legitimately catch them all?