I expect there will be a few Malaysian top 20 will play but after checking with the official site, there's no single Malaysian player play in the Masters section. Even our last year Challenger Champion - Justin Ong who should be "promoted" this year to play in the Master section is not in the starting list.
I think this would be a sad missed considering Singapore is quite near and there's many international strong and title players have confirmed to play. The will be 13 GMs, 14 IMs, and 6 FMs. The top players confirmed to play is GM Kuriy Kuzubov ( 2622), GM Zhaou Jun (2568), GM Nguyen Ngoc Truong Son (2567), GM Fillipov Antov ( 2543) and several others. This should give good opportunity for GM/IM norms!
However in the Challenger section, 13 Malaysian players have registered and the leading Malaysian players in this section is Tan Kai Boon (FIDE 2129) the second seed. The first seed is Singaporean - Jarred Neubronner (FIDE 2170).
Malaysia is the "defending champion" in the challenger section after Justin Ong victory last year!