If i remember right, in one episode of Mage Wars mondays, there was Vampire mage mentioned.
Vampire Mage was mentioned at Essen in a link I provided above - but that's the only time I've seen it mentioned (vs many times the Barbarian vs Sorcerer has come up, including Bryan stating that the artwork is done; and the several times Aaron has mentioned that he's stoked to do a Shaman). And a Vampire might satisfy some of the cravings for a Sanguinancer that have appeared around here. But I'm not convinced a Shaman is a good idea. How would a Shaman be significantly different from a Beastmaster or Druid. Seems to me it would share the same design space. If a totem-based and/or insect-based Nature Mage with level 1 training in Air (and/or Water) is the goal, why not just incorporate that into the alt-Druid? Nobody said both Druids had to be Nature + Level 1 Water specifically, right? Make the other Druid Level 1 Air instead and have it focused on Insects and totems that support its abilities (e.g. a new analog to Animal Kinship that cares about Insects and Plants) and "voila" - no need for a Shaman. (Or just say that in Etheria, a Shaman is the term for a male Druid just like a Priest is a male Priestess, and that all "Druid only" spells are also "Shaman only" and vice versa... although that looks a bit messy).
Similarly, while a Vampire Mage might be interesting, something like that could be incorporated into the alt-Necromancer - although I'd personally prefer a mummy-based Egyptian/Cleopatra-themed alt-Necromancer myself. Also, if you follow the OP stories, they include expanded maps showing an island in the (Mediterranean) sea called Luperta - which would be ideal for a microcosm of Werewolf/Vampire species and Mages. We haven't seen either a vampire nor lycanthrope since the core set ([mwcard=MW1C26]Necropian Vampiress[/mwcard] and [mwcard=MW1C17]Goran, Werewolf Pet[/mwcard]). Could be a Dark-based region that is independent of the Darkfenne and Arraxian Crown themes/stories - but would explain where the Warlock obtained his enslaved pet.
*edit* I lied. Apparently the [mwcard=MWSTX2FFC02]Blood Demon[/mwcard] has the Vampire subtype...
Alt-wizard vs alt-forcemaster... I kinda see 4 wizards in one so I would prefer alt-forcemaster vs alt-necro (vampire?) or vs alt-druid.
On the other hand I even more prefer not having alternatives to every mage but having more unique mages
Think of the alt-version mages as booster packs for existing mages. I'm a big Forcemaster fan, but she hasn't seen much love in follow-up expansions. Sure, she and her Thoughtspores can benefit from attack spells (e.g. Acid Ball and Hurl Rock) and Cascading Force Push is OK, and Devouring Jelly is a good option for a "buddy", but it would be great to get some new spells made specifically with a Forcemaster in mind.