If you purchased the Hermeneia and Continental Commentary sets before they got bundled together, you will have missed out on the Odes of Solomon volume, which was added to the bundle and has never been made available for separate purchase. It's still not available.
However, I noticed today that the Hemeneia/Continental set now offers custom pricing (i.e. you get a discount for the volumes that you already own). For me, that means I was able buy the 'set' for just over $29, which actually means I'm getting the Odes for that price, which isn't bad.
So, if you've not been able to rest whilst you've had a missing volume, you'll finally be able to relax!
