1) marks on walls (bulletholes and blood)
2) lens flares
3) more detailed particle effects, including imp, baron/knight of hell, cacodemon and other's fireball trails.
4) imp fireball lighting mustnot be so red, it will be better when orange, and cacodemon's fireball lighting mustn't be so red too! It must be violete!
5) release of a new modelpack, with my models
6) changes in model lighting system - it must be each-polygonal
7) magaspheres, supercharges and unvulnerspheres must spawn dynamic light
This all was about graphics!
And now about map-building abilities.
1) function 'friendly' for monsters, so i can make monsters to be friendly to me;
2) making sloped floors not by using 'slope' objects - it is better if using sidedefs like'in Risen3D. There sloped sectors can be only triangles - for one of the sides of each can be defined side height. So one vertex saves it's basic height and the 2 others change
their height by parameter setted on the sidedef. It gives no bugs when creating maps
with sloped floors and slopes not always change the height to right side
Please work with that.

