I'm sorry, but if you think a couple new contacts is gonna sustain 1k pop for months I've got some bad news for you.
I can almost guarantee that the broad majority of players who quit the game for extended periods of time don't do so because of boredom due to lack of content, they do it because the fundamental aspects of the game don't function correctly, or at least to a satisfactory level (poor matchmaking, no accurate ranking system, poor server performance, poor client performance (relatively speaking), poor overall gameplay balance, lack of in-game moderation, etc.)