BlazBlue: Central Fiction: Rollback announcement + beta (PC only)
BlazBlue: Cross Tag Battle: Rollback announcement (PC + PS4)
DNF Duel: New trailers (Grappler, Striker, Ranger), Open beta + Hitman, Dragon Knight, Vanguard, Kunoichi, Crusader reveal, release date trailer + Ghost Blade, Troubleshooter, Mechanic reveal
Dragon Ball FighterZ: Base Android 21 reveal
Granblue Fantasy Versus: Vira + Avatar Belial + Lunalu release
Guilty Gear -Strive-: Baiken reveal
The King of Fighters '98: Rollback update release
The King of Fighters XV: Open beta 2 + Krohnen(K9999), Maxima reveal
Melty Blood: Type Lumina: Dead Apostle Noel + Aoko reveal, tournament circuit teased
Nickelodeon All-Star Brawl: Garfield reveal + release, crossplay announcement, voice acting tease
Persona 4 Arena Ultimax: PS4/PC/Switch port reveal
Phantom Breaker Omnia: Release date trailer
Power Rangers: Battle for the Grid: Rita Repulsa release
Skullgirls: New Umbrella trailer/Early access release + Black Dahlia reveal
Decided to start one of these now and update it as the month goes on. If anyone has anything I might miss, add it below.