Original in them being a technology based class, not another death based class.
Rich history in the Warcraft Universe and Blizzard games: One of the remaining hero classes from WC3 that hasn’t been brought to WoW, Gazlowe in HotS, many Tinker NPCs, etc.
Great potential for all three roles (DPS, Tank, Heals).
Mech suits and all the cool stuff that can come with them (think different Mech suits for the different races that could be Tinkers).
Finally a third mail class and a second class that would primarily equip guns.
Does not step on another class’s theme, and no, does not cannibalize the Engineering profession as professions play a much different role than classes.
Did I mention Mech suits?!?!?? Fighting in them, tanking in them!!!
You know what’s your problem is? You don’t want to be a necromancer. Or, you somehow already know that Tinker will be the next class, and there’s no need for two new classes to compete with each other.
I don’t really care, High Elf is good enough for me.
All this scrabbling for another pet class when the pet AI is so impressively godawful. I’d much prefer they fix the pet AI before giving us more pet classes/specs.