Looking at how SE is going with tanking, any tanks after this would have to have:

1) More than moderate amount of HP.
2) Lots of defense
3) Do not sacrifice HP for skills/spells.
4) Do not use magical attributes to an extent.

So, if I'm correct the whole "magical tank" thingy is actually DRK but SE is set in stone how a tank actually works. Any sort of deviation from rules such as "producing a secondary persona in order to attract enemies to attack said persona" is out of the question. If that is the case, we're going to also see a deviation of VIT/STR builds to INT/PIE builds and by now, I think SE made their points that they do not like a variety of builds except the ones they say that is okay.

HP sacrifice would be more tangible with DPS (i mean BLM already does that) and tanks, according to SE, will always wear plate armor and such. Defensive attributes SHOULD NOT scale of RNG or other sorts of chance-y stuff, instead it has to be solid mitigation effects. Look hat happened to Parry and Block.

But that doesn't mean I want to see a class that has a different kind of playstyle other than 1, 2, 3, BUFF, MITIGATE ATTACK, 1, 2, 3....

Evasion tanks are nice to see but I don't think it'll be implemented because the community already decides that RNG = Bad/Unreliable. So, no. We have already trapped ourselves in that aspect.

I just want to see more of Mudra kind of thing on a tank. Certain chains of action would result in different kinds of skills. I like the Mudra and I play NIN because of it. So, why not go ahead and experiment with the system, while also researching for other kinds of cool system that we can implement.