I love the setting and was curious if there's anyone else on these boards who do too?
Steve did and amazing job with the book and I think it deserves more supplements. Although the base book is very detailed in terms of races, geography, theology, etc, I think there's tons of room to expand on. The setting has such good bones that it feels criminal to not expand on it.
Also, an update to 6th edition would be fantastic although strictly not necessary.