I figured that since I have my idea already I'll lay it out. I'm going to do a game for my nieces called The Littlest Princess. It will be a take off of the old single board romps, specifically Solomon's Key and Don Doko Don. Definitely a Roguelike hybrid. It will have the procedural levels, arcade style permadeath, problem solving and consumable management, but it will not be turn based or heavy on inventory.
Dunno if I'll stick with the single board, or make is scrolling, we'll see. It'll be top down though, not a jumper.
Features
-The drunken Digger/Roomie dungeon architect we discussed here:
http://roguetemple.com/forums/index.php?topic=2830.0-Movement engine from Gunfist: Gaiden, an old unfinished project.
-My own cutsie big eyed graphics to appeal to little girls. I was practicing on Slimy Lich Mummy, they should look alright.
-Real time game play, simple 4 way movement and 2 buttons only. NES style.
-Button 1: Make brick, break brick (as in Solomon's Key).
-Button 2: Use potion, which activates whatever magic item you are carrying. Fireball, Frost Nova, Teleport, etc...
-Couch Co-Op with different characters (sprite switch only, no difference in ability). Girl, Boy, Dog, Cat? We'll see.
It should be fun, as a lot of the engine is already extant. Also much of the graphics style will come from Solomon's Key for the NES, so I'll have a good template to work off of.
Of course everything is subject to change.
Any other early ideas out there?