Well, if the world is ready for five majors, maybe.
But the first four are run by:
Augusta National Golf Club
The United States Golf Association
The Royal & Ancient Golf Club of St. Andrews, and
The PGA of America
Which of those is going to take their show to South Korea? C'mon, man ...
As for the players' demands, the players run the TOUR ... but that's all the players, not just the elite players. The players, as a whole, want as many tournaments as they can play. In fact, the players as a whole would be happy with a schedule where McIlroy and Walker and the major winners could take some time off or go make appearance fees in Asia or Europe, while the rest of them have a better chance of making top-10 money.