It would be helpful if the DirectX specification used by MapleStory was updated to at least DirectX 11.
Not only would MapleStory be able to natively support higher resolution rendering, but it would also gain functions introduced in DX11 such as Borderless Full Screen Windowed Mode, and the ability to draw natively at 1080p or higher resolutions like 1440p(2k) and 2160p(4k) even if the 1080p resolution was simply scaled to fit, or gained native GPU rescaling via Nvidia DLSS and AMD Radeon Super Resolution.
This change would benefit various people such as users of Intel graphics since Intel will be dropping native acceleration of DX9 in their upcoming ARC GPUs in favor of D3D9OnDX12, as well as livestreaming which has issues with D3D9's Fullscreen resolution system which causes extended monitors to incorrectly be scaled and resized limiting functionality of streaming software, and also because most GPUs currently in circulation, even according to Steam's GPU survey system, support at minimum DirectX 11.
One editable compromise would be to remove the DirectX 9 Fullscreen Locking system that auto-rescales multi-monitor displays incorrectly along with the main gameplay screen.
GMS does NOT control the core systems and content of the game. KMS, the originators of all content, are the people you need to ask, so this poll is pointless and any legal standings are invalidated by the fact that KMS is the one's who are or aren't acting on this. The GMS, Nexon America, publishers are that... publishers. They have some coders to fix bugs and resubmit them to KMS's bug tracking service and code base, but KMS is the entity that changes all the code in the game and allows whatever content they feel is part of the game. You want this to happen, ask Nexon Korea.
The values and norms of Korea are reflected in the game. Since Nexon America is only publishing and translating the game as well as overall maintenance, we have no say here in the USA. Nexon America answers to Nexon Korea. If you want change, you're asking the wrong company.
The login server, even here in central California (Tulare-Visalia area), which is not that far from El Segundo, CA down south, I've been getting, even with Comcast Broadband (speed is rated from Ookla at 72.76MB down and 5.86MB up with 18ms ping using Burbank, CA Sprint server for best possible comparison), an estimated time frame of at least 4-6 minutes from launching the MapleStory.exe until I can actually get into the game itself. The initial login phase takes at least 3-4 minutes whereas the PIN login stage takes only about 1-2.