http://forgottenrealms.wikia.com/wiki/Cult_of_the_Elder_Elemental_Eye
The Cult of the Elder Elemental Evil is already on Faerun, during the Abyssal Plague books Thazidun expanded his reach to more worlds using the Abyssal Plague, Toril was one of those worlds he reached.
So its not so much a straight up copy of Greyhawks Temple of Elemental Evil, but with Faerun names as the Greyhawk Temple opened up a Toril branch in Akanul thanks to a Abyssal Plague Demon.
This happen in the Sword of the Gods book. Interesting note about that book, the hero Deva (incarnated as opposed to Astral), is actually reborn on different d&d worlds depending on the will of the Gods, which means he acts as a connection between worlds (settings). Unlike most other Toril Deva his origin is not Mulhorand and Unther.
We may actually find out what happened in Akanul after the Sundering.
This also means that incarnate Devas might, just might also be in this book.
Its be neat if Genasi, Planetouched, and Incarnate Devas (possible called Aasimar) were in this book as races, but it would be funny too as you'd have 4e Tieflings, Genasi, and Aasimar as each seperate unique races, with all the pre 4e Planetouched being combined into a single Planetouched race with subraces with in 5e.
The Cult of the Elder Elemental Evil is already on Faerun, during the Abyssal Plague books Thazidun expanded his reach to more worlds using the Abyssal Plague, Toril was one of those worlds he reached.
So its not so much a straight up copy of Greyhawks Temple of Elemental Evil, but with Faerun names as the Greyhawk Temple opened up a Toril branch in Akanul thanks to a Abyssal Plague Demon.
This happen in the Sword of the Gods book. Interesting note about that book, the hero Deva (incarnated as opposed to Astral), is actually reborn on different d&d worlds depending on the will of the Gods, which means he acts as a connection between worlds (settings). Unlike most other Toril Deva his origin is not Mulhorand and Unther.
We may actually find out what happened in Akanul after the Sundering.
This also means that incarnate Devas might, just might also be in this book.
Its be neat if Genasi, Planetouched, and Incarnate Devas (possible called Aasimar) were in this book as races, but it would be funny too as you'd have 4e Tieflings, Genasi, and Aasimar as each seperate unique races, with all the pre 4e Planetouched being combined into a single Planetouched race with subraces with in 5e.