If by any chance Aggramar survives the end of ‘The Last Titan’ — and that he’s regained much of his power whilst restoring himself in ‘The Seat of the Pantheon’ … Do you believe he would return to the last world he ordered (Draenor / Outland) to view its outcome, study its history and find a means to help it? 
The Orcs
Do you think he’d be proud of the orcs? Knowing that they were beings of the titanforged, that originated from his elemental creature forged from their very world and had descended from it?
Do you believe he would take relief in the notion that they had broken free from the corruption of his fallen brother Sargeras’ and managed to forge a path forward; that of which ultimately helped not destroy, but save the world of Azeroth?
The Draenei
Do you believe that Aggramar would take solace in the knowledge that the world he had ordered was able to provide temporary refuge to those that fled his brother’s mad quest of the Burning Legion? That despite the ill fate that had befallen them later, he could smile that it helped them endure in the long run?
The Spark of Hope
And ultimately … Do you believe, that in spite of the world being broken, drastically changed and continuing to suffer & break — that he would surprisingly hold out hope for the world?
Saving the world that was lost …
Lets say theoretically that Azeroth had ‘Awoken’ at the end of the world soul saga and arose in a celestial form from the eye of the Maelstrom — Taking much of the oceans along with her; shimmering with latent magic and her body shrouded in a cloak of stardust & decorated in remnants of the sunken Kal’dorei empire — which had resulted in the world of Azeroth’s seas to decrease by immeasurable amounts, causing much of the continents shore borders to expose land once submerged beneath the waves …
From the events of both witnessing what Draenor had become — Aggramar could not bare to leave Draenor (Outland) to such a fate. His natural affinity for order, was compelled to take action.
Thus Aggramar, tenderly cradling the broken remnants of the world once known as Draenor in his vast celestial hands, tapped into a grand magnitude of his power and miraculously placed the broken world into the disrupted oceans of Azeroth — Causing the seas to tremendously rise in receiving such a ginormous landmass and surprisingly enough … Restoring the sea-levels to its former state.
And so, Outland the formerly known world as Draenor and the world of Azeroth — Were made one. Bringing forth great new threats, new allies and new potential stories & journeys on the horizon …
Anyway 
Feel free to share your thoughts upon:
- The concept of Aggramar’s return to the world of Draenor / Outland,
- What’s written above
- Your desires for either Aggramar or Outland lore-wise,
and / or your own takes on the matter altogether 