This has come up before so ithought I would Post what I could find on Third Party stuff.
#1- ComStar games had mentioned plans to publish RQ related products in a thread about 3-4 months ago. There is no mention of it on their website.
#2- Battlefield Press said the sam as comstar, but no announcements or info on their website.
#3- Seraphim Gaurd is releasing it's "plain wrap" series of RQ tidbits
#4- Other World Creations has released it's Diomin fantasy setting for RQ
That is about all I could find anyone else have anything?
You've clearly heard a lot more than me, but I imagine for a lot of smaller companies the Runequest OGL could be pretty appealing.
RPGPundit