Kill Ping writes: “A couple of weeks, Valve came out a brand new update for Dota 2 which not only introduced the community to the games most recent Arcana i.e Rubick, but also released a new event called Frosthaven. This new game mode was initially set to end on January 3rd. However, the developers came out with an announcement today, extending the date to January 7th for all Dota 2 players.”
Source: N4G PC Dota 2 Frosthaven Extended Till January 7th; Mars/Season 3 Delayed?