A: Sales much higher than expected so they focused on bug fixes and adjusted their expectations.
B: into their pockets for making such a great game. Keep in mind the money gets spread out and money isn't some magic thing you can go "presto" with.
C: By the end of the year.

D: Don't freak out when they move this to the pinned thread above, it isn't a conspiracy. Searching would have saved you some time.