The ranking won't be the sum of the points of all tournaments anymore. Each position for each type of tournament (GS, MS, IS etc.) will have a fixed scoring. Players will be able to play all tournaments in the week, and just the best result will be counted on the ranking. Also, FITD won't have that 18-tournaments thing: all weeks will give you points.
Some great rule changes for the new season
Especially the above one
I believe that was a huge blight on the game last season as filling out a FITD entry can be rather time consuming and most of the time I just didn't have time to fill in one for all tournaments when I got home from work before play had started which meant I would miss out on points that other people were getting.