I think this sounds like a great wave, though I wouldn't be surprised to see some pegwarmers out of it.
Darth Malak - Count me in for at least two, one for a custom
Anakin w/Tattoos - I like this for the mere fact it's so different - a human w/out a shirt. I could use a few for customs probably. Cool.
Yoda w/Kybuck - Finally, a Yoda with what could be a great accessory. If the Kybuck is cool, I might get a few of these.
Pre-Cyborg Grievous - Sounds fantastic, I've seen some great customs on ebay. I'll most likely get a few and make a fan fic Separatist army with them. Awsome, now give us a to scale ROTS Grievous!
Darth Revan - Pics of it look nice, but I'll probably only get 2-3 of them.
Roron Corobb - I did a custom of him that I do like, but this could be the winner of the group for me. If it's well done I could get 5-6 of them. Here's the custom I made -
While I do like my custom it's a far cry from looking accurate.
What this wave really needs is an army builder like the Lancer Droid!