What games are you referring to? I know 2 games coming out that are the same basic genre, space game, but those are Star Citizen and No Man's Sky, and neither of those focus on PvP, quite the opposite, with Star Citizen having a PvP slider that lets you choose whether you see other players and they see you from NONE to FULL, and NMS is a single player online game, E: D's Solo setting in other words without the option to change it to Group or Open.
Infinity Battlescape isn't the same genre, it's set in space but it's not like E: D, SC or NMS at all outside of being in space. Single system, have to join 1 of 3 factions, then you fight for resources to build up your faction and..that's it. I think there's another space game out, besides Evochrone Legacy which is a single player game with multiplayer ability, not an MMO style though, Rogue System. A combat simulator for space ships, but I'm not really feeling it myself, far too many atmospheric flight things going on there. Pitch, roll, yaw indicators in space? Really? Still, for the simheads out there, it looks very interesting, but you'd better know your stuff before you try and fly around, much like other hardcore flight sims, it ain't a open the program and go thing...
So, which games are you talking about?