Well, that’s my point: “for now” it’s a loooong way.
Why? the devs have been plain deaf to listen Telluria/Vela real issue: their mana speed simply doesn’t match their stats/special skill, specially Telluria (Vela is collateral damage simply because she’s a natural flank to green, but my guess is that she was specifically designed as an attack hero, specially for titans).
Telluria is still Santa sturdy, more crippling than Guin, paladin talent + direct & indirect healing, packed in an average mana speed… it’s going to be really hard to beat her as top tank for a while, moreso now that SGG experienced what happens when they release such an OP hero.
Right now we should expect to decrease her presence only in raid tournaments, but for me that’s enough; people forget that in high diamond, specially top 100, everybody has the same tank.
About other tanks… well, in my quest for Guin I got BK, I’m a purple hero magnet so I have Ursena, my tank before Telluria was Onatel, who held up diamond without a problem, and have a cBoril maxed too, he was my war tank when we used blue, and did an excellent job.
So I think I’m covered for tanks in case we change color for wars, but I really doubt we will do.