Where are the Vials of the Well of Eternity now?

[Mace]

In who's possession are they? I lost track of this after TBC - i think we got one from Vashj, and one from Kael?

Do we know what Illidan was intending to do with them and who got them?

[Destinas]

Seven were taken by Illidan after the War of the Ancients. He used three to make the new Well on Mount Hyjal. Dath'Remar Sunstrider somehow got one, and created the Sunwell from that. Vashj and Kael were given one vial each after Illidan inexplicably recovered them. The player gives those to the Bronze Dragonflight.

The last one is missing - at least, it wasn't stated that I know of. There were theories that the Reliquary of Souls was made from the last one, based on the green fire questline in MoP. http://wow.gamepedia.com/Quest:Infil...e_Black_Temple

Jubeka Shadowbreaker says: This... is amazing... an untapped store of raw arcane energy.
Kanrethad Ebonlocke says: For years it has languished, slowly growing in strength...
Jubeka Shadowbreaker says: Imagine what we could summon with just a fraction of this power!
Kanrethad Ebonlocke says: Summon... ha, imagine what we could become if fused with power of this magnitude...
Kanrethad Ebonlocke says: The powers of this room are not unlike the original Well of Eternity on Azeroth.
Jubeka Shadowbreaker says: So this is how Illidan bound so many demons to his will...

As for what he wanted to do with them, he wanted more power. Pretty much it.

[In Ogres We Trust]

Seven were taken by Illidan after the War of the Ancients. He used three to make the new Well on Mount Hyjal. Dath'Remar Sunstrider somehow got one, and created the Sunwell from that. Vashj and Kael were given one vial each after Illidan inexplicably recovered them. The player gives those to the Bronze Dragonflight.

The last one is missing - at least, it wasn't stated that I know of. There were theories that the Reliquary of Souls was made from the last one, based on the green fire questline in MoP. http://wow.gamepedia.com/Quest:Infil...e_Black_Temple



As for what he wanted to do with them, he wanted more power. Pretty much it.

The two vials in Outland were remnants which strongly suggests that Illidan, Kael'thas, and Vashj used them to empower another Well of Eternity on the shattered remains of the planet, i.e. the power under Karabor.

http://www.wowhead.com/item=29905/kaels-vial-remnant
http://www.wowhead.com/item=29906/vashjs-vial-remnant

P.S. Also, with a second Well of Eternity and the Sargerite Keystone, Illidan would have been unstoppable. Honestly, at least to me, it all ties in nicely.

[Mace]

You don't think Illidan is saving it for his people? They are going to come round soon enough, and they're going to need to be ready .. he can't defend the world on his own.

Illidan has always wanted teh adoration and approval/accolade of his people he deserves...well he feels he deserves, maybe he'd use it with the nightborne.