I'm working on an adaptation of the Classic tileset, combining the excellent sprite talents of King Aquamentus and FYS with my own endeavors and an improved environment; all without deviating (too much) from the three-color scheme.
This set I'm working on goes off the assumption that an engine could draw a sprite of another CSet on top of one already on screen. Also, enemies have been adjusted to be anatomically proportionate to Link and the angle of player perception has been adjusted to prevent weird perspective issues these new sprites would face (and have faced) in the classic setup.
Attached to this post is a quick snapshot of the dungeon tiles, which are designed to look like a diorama.
I'm 90% done with the graphics for this thing; I've just got to work out how to get the mountains to be more detailed without losing the simple elegance of the classic style.