Was recently informed that on the SteamDB listing for Ace Combat 8 (https://steamdb.info/app/2288340/history/) there were listings added on 31 January for "ACE COMBAT ZERO", "ACE COMBAT ZERO (Debug)", and "ACE COMBAT ZERO (SteamOS)". They all seem to be Windows executables as launch options for the game, including the SteamOS version, so I'm assuming it's like how PS4 buyers of Ace Combat 7 could also get a port of 5.

Also something called "ACE COMBAT ONLINE (CNT)"? I wonder if this is some separate online mode of 8 or if we are getting some other bonus.