Every mage has one primary magic type and possibly a secondary. I don't think Arcane Wonders will divert from that. I doubt we'll see mages with two primary or none. Maybe there will be an exception to this rule with an Elementalist.
Wizard, Beastmaster, Priest, Warlock, Warlord, Druid, Necromancer and Paladin are very basic classes from RPGs. Forcemaster and Siren are not your standard RPG class but they fit into the mage wars fantasy world just fine. The spell cards' flavor text mentions Primus, Tempus, Archeon, General and Warmaster. I think these flavor texts refer to individual's titles rather than hints at a new classes of mages. I don't think AW will go mad and introduce lots of crazy ideas for mages, they will stick to some of the classic fantasy classes.
All the mages have a subtype that they are really good at. Wizards got mana and metamagic, Warlocks have demons and curses, Necromancers have undead, Priests have healing, Forcemasters have force, Beastmasters have animals, Druids have plants and Warlords have command spells. I'm guessing the Siren will have control as in the spells charm and mind control. Paladin might have protection, light or something completely new. I'm sure there will be future mages released that are great at transform (turn to stone), psychic (sleep, mind control, charm, mind control) and poison (ghoul rot, poison blood, poison gas cloud).
legendary creatures such as Otto Kronig, master engineer and Sir Corazin, Blademaster aswell as goblin alchemist, even though he isn't a legend, suggest that engineer, blademaster and alchemist won't be mages but take part in the game as minor characters.
Since the game is called mage wars, I don't think we'll see classes such as warrior, hunter, rogue, ranger or bard. They might make an entrance as legendary creatures instead.
This game has no apparent race abilities. I don't think all high elves/dwarfs/orcs will be sharing any traits. All races seem pretty equal in the arena. AW wants the mages balanced. They all have 120 spell points and fairly close hp and mana. This makes me think we won't see Troll kings or fairy princess as mages but perhaps as legendary creatures.
spell card art that may hint at future mages:
[mwcard=MW1E23] Jinx[/mwcard]
[mwcard=MW1I06] Dispel[/mwcard]
[mwcard=FWI01] Destroy Magic[/mwcard]
[mwcard=MW1E20] Harmonize[/mwcard]
[mwcard=MW1E24] Magebane[/mwcard]
[mwcard=MW1E31] Poisoned Blood[/mwcard]
[mwcard=MW1I11] Explode[/mwcard]
[mwcard=MW1I16] Lay Hands[/mwcard]
[mwcard=MW1E11] Divine Intervention[/mwcard]
[mwcard=MW1E37] Sacred Ground[/mwcard]
[mwcard=MW1I12] Force Push[/mwcard]
[mwcard=FWE01] Charm[/mwcard]
In conclusion, here are my guesses of future mages:
Arcane: Mystic, Enchanter, Sorcerer, Conjuror
Dark: Vampire Lord (vampiric), Witch (curses, frogs, cats, charms, poison)
Holy: Paladin (protection), Monk (air)
Mind: Siren (control), Seer (psychic), Illusionist (illusions)
Nature: Shaman (totem), Shapeshifter/Werewolf (lycanthrope)
War: No idea
Legendary creatures:
hunter
spider queen (spiders)
bard
scout
assassin
sage
warrior
troll king (trolls)
fairy princess (fairies)
ranger
rogue
I'm sure a lot of this has been mentioned in the forum before. I don't follow it and wanted to share my thoughts on what to look forward to in the future of mage wars expansions.