Add a possibility for more than 9 maps in a campaign. ( Due of a Init. map, where you select the maps (There can be unlimited amount of buttons). Normally the Campaign screen can have only 9 )
Adds a protections against map jumping. (motherload, and such - "tricky" way to go and pass stuff from world editor, won't be possible with this system, hopefully.)
Those are the current 2 things I'm aiming to.