We will probably see a new Class during the Worldsoul Saga

[Eldryth]

I just really don't see how they could do a mech for anything except maybe tank. It's hard enough to see what's going on in raids and especially in M+ already with all the addons we have. They can't remove addons and add in a class with a big fucking mech making seeing things even harder. It goes against their current design philosophy of making things in the game more visible and intuitive for players.

And it'd cover up most of your transmog, which was Evoker's biggest issue and something they recently claimed to have learned from.

I could see it working as a temporary form you use, either as a cooldown or something you build up to like Devourer's Meta, but I really can't see a permanent mech working that well, practically. It's a cool fantasy in its own right (though I'd prefer a gadgeteer), but not one that translates too well to gameplay as a permanent form. And besides, if it's something you only have access to for short windows, they can make it much more powerful and impactful. Maybe they can use the swapping skills mechanic that they've been using lately to reduce bloat, and have you use a mostly different skillset during mech windows? That'd make it very distinct from any existing options.

[Al Gorefiend]

It’s said to be mechanical and magical in one of the blood elfs story’s so they’d be a case of magi tech instead of just enchanted golems. A lot like XT really but likely less advanced which is why they’d need more crystals.

Yeah XTs design seems like a good template for what titan tech mechs would look like

[Ersula]

And it'd cover up most of your transmog, which was Evoker's biggest issue and something they recently claimed to have learned from.

I could see it working as a temporary form you use, either as a cooldown or something you build up to like Devourer's Meta, but I really can't see a permanent mech working that well, practically. It's a cool fantasy in its own right (though I'd prefer a gadgeteer), but not one that translates too well to gameplay as a permanent form. And besides, if it's something you only have access to for short windows, they can make it much more powerful and impactful. Maybe they can use the swapping skills mechanic that they've been using lately to reduce bloat, and have you use a mostly different skillset during mech windows? That'd make it very distinct from any existing options.

High chance the Mech would be a cooldown, so only present some of the time, much like the Metamorphasis form, which is big but has neve been a problem.

[Nightshade711]

High chance the Mech would be a cooldown, so only present some of the time, much like the Metamorphasis form, which is big but has neve been a problem.

Agreed. The only way I wouldn't see the mech being a CD is if it was a transformation. But then it wouldn't really even be a mech.
Blizzard just doesn't seem to be a fan of permanent stances/forms anymore. None of the new classes have them & a majority of them have been pruned. (Like DK presences, Monk stances, etc)