Ok a few ideas i had about SC... which if the source is release i plan on working on unless someone beats me to it
1) Implimenting a Loading screen
2) Making the window title show the game or server name
3) cleaning up the item table fields( e.g the unknowns) and making the client match so its easier to work with
4) Danyamic sky (meaning multiple skies to choose from for various zones)
5) Control Key mapping
6) Journal Window
7) Support for other versions of the emu ( 0.5.3, and 0.6.1-0.7.x)
Patch system
These are some minor glitches ive seen
1) Targeting ( the need to click the mob in precisly the right place in order to target)
2) Player lights seem to crash the server
3) Item window shows (param2) in some places
4) 0.6.0-dr2 Client crashes on OP_WearChange