According to images leaked in Facebook groups, Pascal's Wager, TipsWorks ARPG and Giant Games will get an update soon with a versus mode and an arena mode.
The mode will also bring two new playable characters: Jerold and Teresa.
See the pictures:
Clearly one of the modes is for player-versus-player matches (Arena Mode), while the other is a multiplayer mode (Multiplayer Mode). There is no date yet for the release of these modes.