Here is what i think:
- Save/Load states is something reaaally important
- Widescreen is possible?
- Select multiple sprites at the same time
- Custom Layers for Sprites
- Full Cube/Cube is going to get improved?,sometimes when i play Megaman for example,some blocks get a "hole" when in FC/C
- Turn Shadow Off in the background sprites or the sprites or your choice
- Sprites that render some kinda of light
- Mouse wheel moves tiles forward and back in space.
- Command to send all tiles to back (fresh slate)
- Anti-Aliasing and FXAA ?
- A new pattern that turn some sprites in something like a Ball made of pixels? (without holes like V-Cylinder and H-Cylinder)
- Possibility to turn Shadows off without putting Graphics on Low
Yes,i copyed some functions from the others comments