I will answer 10 questions about Mordenkainen's Tome

What comprises the list of all new player options (races, archetypes, feats, spells, etc.) in the book?

 

[Ancalagon]

Yes. Two subraces. 13 pages of content.

Wow... just to be clear this isn't a typo/misunderstanding, the hypo people are a playable race (Not the gith)

 

[Morrus]

Wow... just to be clear this isn't a typo/misunderstanding, the hypo people are a playable race (Not the gith)

Apologies. Gith, not Giff. Giff are not a playable race. Sorry!

 

[Bitbrain]

Any information on Duergar in other settings besides the Forgotten Realms?

 

[Morrus]

Any references to Mystara (other than the Nightwalker)?

There are no immediately obvious big references to Mystara I saw on my flick-through, but bear in mind I haven't read every word.

 

[Morrus]

Any information on Duergar in other settings besides the Forgotten Realms?

No, just FR.

 

[Morrus]

Who's going to get the last question?

 

[Kobold Avenger]

What's the mention about Elder Evils?

 

[Morrus]

What's the mention about Elder Evils?

If there is a mention, I haven't noticed it yet. Do you have any idea where in the book it might be?

 

[MechaTarrasque]

They mentioned that there might be celestial versions of the fey eladrin. If so, are there any differences?

 

[Kobold Avenger]

If there is a mention, I haven't noticed it yet. Do you have any idea where in the book it might be?

I think it was after Star Spawn.