I was reading through some of the old conversations and Ed's notes on the Covenant and am wondering if we have seen anything else of Presper and Grimwald, or maybe even Agannazar (who might actually have survived, given Ed's history: "In the Year of the Disastrous Bauble 1081DR Agannazar is believed to have gone down fighting in the explosive destruction of the School of Wizadry in Neverwinter.") - which I read to mean there was a big explosion and no trace of the Archmage after that.
Have they made any appearances since in anything published?
Also, I have Ed's description of Agannazar, but has there ever been any such description of the others?