New Arc Suit sync pairs Arc Suit Diantha & Gardevoir and Arc Suit Geeta & Glimmora are coming soon to Pokémon Masters EX. The two powerful Arc Suit Sync Pairs will join the game’s growing roster of Arc Suit Trainers and are expected to arrive through upcoming Poké Fair Scouts, bringing new battle strategies and powerful abilities to Pasio. Additional details, including their release dates, scout periods, sync grids, passive skills and event availability, will be announced when their official Pokémon Masters EX event notices are released.
Source: Official Pokémon Masters EX site
Nintendo & Pokémon Blog 