The connection between Necrozma and Ho-Oh makes perfect sense
Prism.
Rainbow
Ooh, that didn't cross my mind. Interesting connection.
Watch "Stars" be a codename for the game eventually named 'Pokémon Prism'. That would give a new sense to the whole Prism hack shutdown incident. Though I suppose it would be more symmetrical if "Prism" was the codename, opposite "Niji".