A new system of competitions for Individual and Team World Championships was adopted by FIDE at its congress in Manila, in October 1983. The proposal was being prepared for some time by an ad hoc Committee headed by Mr. Campomanes, the President of FIDE.
The new system contains many changes:
a restructuring of FIDE Zones was carried out (new distribution of countries among the Zones, two Zones in Africa, the so-called Sub-zones set up in some Zones);
a two-year cycle of competitions for Individual World Championship was introduced to replace the hitherto three-year cycle (i.e., the World Title Match will henceforth be played every other year);
12 (in 1985, 14) best players from the FIDE rating list will also have the right to participate in three Interzonal Tournaments;
a candidates' all-play-all tournament with 16 participants was instituted, to be played after the Interzonal Tournaments;
Individual Candidates' Matches with four participants -- the players placed lst-4th in the Candidates' Tournament -- will be played after the candidates' all-play-all tournament;
in addition to the Chess Olympiad, a World Team Championship (with ten participant teams) was instituted to be played every fourth year.
What happened to this grand plan? The infamous 1984 Karpov - Kasparov title match (Moscow; 1984-09 through 1985-02) took place.