Nin Online 8k
8k resolution is a thing nowadays and Nin Online is getting more modern by the day so why not take advantage of the fact screens can display resolutions this big and increase the size of maps. Mounts are a thing now so having bigger maps should not be an issue with improved traversal options. The maps that are big enough look amazing in 8k but there is a lot of world maps that are smaller so there is a lot of empty space.
Changes
All world maps are now 8k ready.
Map switches are now much bigger (you are able to swap on all spots that are not blocked by something).
With platforming being a thing map switches could be much bigger now since you can basically get on top of anything or jump off heights. Having bigger maps with bigger map switches would make it much harder to camp map switch areas with traps or jutsu spam since enemies have way more entry points.
A lot of suggestions towards making DZ combat better seem to be focused on adding more maps to avoid choke points but I think what I suggested is a better way to do it, seeing how the majority of world maps we currently have are smaller than what today's screens can support.