Chess Grand Prix 2014-2015: What is going on?

I saw this article on chessbase: 

http://en.chessbase.com/post/khanty-rd3-caruana-beats-tomashevsky 

It's about the final grand prix event for the current cycle. I then realized I had no clue what that meant. So for everyone else that doesn't know either, have a look below. 

• Here's what the 2016 Chess Grand Prix actually is: 

http://en.wikipedia.org/wiki/FIDE_Grand_Prix_2014%E2%80%9315

The top two in grand prix points will qualify for the 2016 World Chess Candidates Tournament

• The 2016 World Chess Candidates will be a 8 player tournament, the winner of which challenges Magnus Carlsen later in 2016 for the title of World Champion

• The runner-up of the 2014 World Championship match:  Viswanathan Anand (IND)^[3]
• Two qualifiers from the Chess World Cup 2015. The top two winners will qualify, unless one of them is Anand and/or Carlsen, in which case the third (and potentially fourth) place winner will qualify.^[3]
• Two qualifiers from the FIDE Grand Prix 2014–15. The top two qualifiers not already qualified according to the criteria above will qualify.^[3]
• Two qualifiers by rating. The top two players by rating not already qualified according to the criteria above will qualify as long as they play in either the World Cup or the FIDE Grand Prix. The average monthly lists from January 2015 to December will be used for the calculation.^[3]
• An Organizer's Nominee. The player must be rated at least 2725 on 1 July 2015.^[3]

The Candidates Tournament will be held 9-28 March 2016.^[4]