I believe that 3.0 (whenever it comes) will be the real marker for the growth of the game, whatever in entails.
i dont see 3.0 doing good at all if it even gets there. just look at blizzards diablo3. the ROS DLC did so bad that the 2nd DLC "king of the north" got sent to the chopping block and with how Fdev have been doing what some will call 1/2 done very buggy updates I don't see people coming out in the numbers they hope to buy 3.0.
and Diablo3 did do good on copys sold but to do problems of game play and the lead dev idea of what players should call fun the players just walked away not to spend anymore money on that IP