first of all, welcome aboard! 
as my esteemed colleague @Geoffers747 has mentioned, this does not appear to be the direction the team has taken… multiplayer has been discussed quite a bit (as is to be expected with virtually any game), and it seems the team had a different take on (for example) the co-op experience…
and looking at this stretch goal, it’s still very much a single player experience at heart…
Player vs. Player City Raids: Select a party of adventurers to storm a copy of another player’s city and bring home their treasures. Leaderboards will rank and track the deadliest fighters and most impenetrable fortresses.