New Specs over Classes

Ok go on this with me

What if instead of a new class, current classes got 1-2 new specs?

I would kill for a support healer rogue spec

Demon hunter deserves a ranged spec where they throw glaives and blast fel energy

Warlock is dying for a demon form tank or a healing spec that shuffles around life force

The only class I can actually think of adding something to wow, for me at least is the tinker class. I feel like we have the archetypes we need now give us specs

What do you think?