I don't know if Brumbek's made any significant progress with meshes, but if he has, that'll also be included, of course.
I haven't made any progress, I'm afraid. I looked at the SI meshes, saw tons of cracks and leaks and got mad at such poor modeling. Although, doing SI is still on my list...
In the meantime I put together a "Realistic Teeth" mod for Dragon Age just for kicks. Sorry for off topic self-promotion, but check out http://www.dragonagenexus.com/downloads/file.php?id=1532. Any Dragon Age players must use it!
Oh, and I did an http://www.tesnexus.com/downloads/file.php?id=33639 for the nifty total conversion "Arktwend" for Morrowind. Most people have never heard of it; it's the prequel to Nehrim. I recommend it if you want a fun Morrowind-ish experience.
Back on topic, um, I'll get started on the SI stuff soon...