I don't expect any Pokémon that needs an item to Evolve will get a Community day, particularly for Pokémon that have shared Evolution Items.
That said, I would probably hold off on that Perfect for a little while just in case Niantic decides to throw us another curveball, like they did with Eevee day. It's probably worth waiting a month or two and see if Niantic does something different over the next few months that might make my reasoning invalid.
Which would be nice.