[MrGannondorf]

well, here's my half a cent:

First off, elaborating on your first idea, because I don't quite fallow your meaning.

Secondly, drawtilesoverplayer would be more feasable as a second tileboard, in wich the tiles can have transparent values. This would be above the player and could be kept empty of tiles.
The only problem is because npcs can imitate this effect (and showimgs with less lag), so it probably wont be added.

Lastly, its probably better if you merge all your ideas into one thread and title it your incredible edible sugestions, or something.