
... *reads again* ...
*hurriedly starts typing*
Hey, thanks for asking that, August! I'll gladly comply; here are the classes that I would love to see.
Let's start with my favourites:
The Vakeros - naturally. 
The Shadakine Wytch. Tanith was my favourite Grey Star companion and a fascinating character!
The Kundi Shaman. Cranky old Urik was also a great companion!
The Cener Druid. Roark's summoning of Tagazin and the fact that The Prisoners of Time (paragraph 84) called Gardor Vezh (the Chief Druid of Malis Mound) a necromancer should nicely qualify them for a book on magic ...
The Nadziran, should they in fact be considered playable characters. (Maybe a Minor Nadziran who can only transform into wee little dragons?
)
And, of course, the Shianti Wizard. (They were called "wizards" the gamebooks, weren't they? And that magical ability was called Sorcery? The German translation can be a bit confusing in that matter, as the name for that ability would retranslate as "Wizardry" ...
)
Now for a few classes whose qualifications as capable of magic may be in doubt, though:
The Herbwarden of Bautar - were they the same as the Herbalish? I never was completely clear on that. If they weren't, both would be interesting ...
The Magician, like Cyrilus from The Kingdoms of Terror, who claimed "no great understanding of the arcane" ... Maybe he really had no supernatural abilities at all, but then again, maybe he was just ... modest about his talents?
I could easily imagine him as a kind of "charlatan" and "illusionist" who travels across the country to entertain people at fairs, be it alone or with troubadours like the Asajir Players. Of course his powers would be modest compared to the Brotherhood mages, but such subtle magics, probably based on enchantments, phantasms and a fortune-teller's craft, fuzzily bordering on mundane legerdemain, could be a lot of fun!
The Astrologer or Sage, based mainly on Gwynian and his colleagues from Varetta's Brass Street. Gwynian was capable of magic, but maybe he was the exception to the rule?
And here's one which might not even have a raison d'être ...
The Kirlundin Wytch - maybe I'm on the wrong track, as Aieta Nematah was called the Wytch of the Kirlundin Isles (as in "the only one"; compare Prisoners of Time, paragraph 84, again), but somehow I like the ideas of witches on these isles ... Especially after tales I have heard of witches on the coasts of Scotland, cursing sailors and calling up storms ... 
*counts* Yep, that's ten.
[dreamily]
... their own 12 page sections ... [/dreamily]
Paido, already exited at the apparent prospect of seeing
ten new classes ...
