Indeed Jinko, lots of speculation.
But still, even in the best case scenario (whm super move being water-based) I wouldn't really call the elemental wheel "balanced" as it was pre 1.20, would you?

Healing spells being alligned to water might also be the case, but that would be very unlike FF, and since Yoshida worked so hard to bring the FF-esque feeling inside of FFXIV with patch 1.18 and 1.19 it would be a bit disappointing to see it go away with 1.20 after all the steps forward in that direction made with the previous patches, don't you think?
Also, if healing spells were water-based it still wouldn't solve the elemental wheel balancement issues, which gives even more rightful reasons to be afraid about the fact that they're going to get rid of the elemental weaknesses aspect.

This seems pretty unavoidable to me, but I tend to be a bit pessimistic to I guess there's still hope.
Still, supposing the "elemental weaknesses removal" will happen, what I'd like to know is:
Will this be temporary until 2.0 to make things easier to develop and handle until then? Or a permanent change to the game mechanics?