Dear Wanderer Nalan,
Myself and Tuachell are the creators of the Shattered Lands and, while we are open to additions of any kind from the community, its probably not in the cards for a wholesale merging of our setting with yours. While the website itself is very lore-scarce, this is simply a matter of time and HTML management. We actually have a pretty stable setting under development. However, we're always looking for those with input, so if you'd like to make additions and whatnot, we welcome them; either here on the boards, where we can discuss them, or on the Submissions page of the website if you feel inclined to go in that direction.
More information about the setting can be found in these places:
GleemaxThe WotC forum...as well as in the pertinent sections of this forum.