Movers were fun if used wisely and i would like to see those return, at least doors with uneditable options. Remember, you could make the mod and release it in dso form to stop mad editing of it. I also like floating bricks, it just gives a little more building freedom. Jetpac lag option would be nice, more bricks more decals and faces etc for characters.
What i don't wanna see is an EW, brick in brick building and please god no more damn weapons or mods that wipe out default stuff (i.e. new colours)
1 decent mod so far in my opinion and thats the macro saver... oh and the bmptoscript thing was neat but it made my 128x128 handmade mandelbrot art seem pointless now :(