What we know for Certain:
* Races:
-- Eberron: Shifters have already been covered. That leaves Changelings/Doppelgangers, Kalashtar and Warforged. If we take the FRPG/PH2 as guidelines, 2 of these will end in the EPG and 1 in PH3. {Edit: Since the Warforged were already done in a Dragon article, I would be willing to be it is the one that goes PH3 with Changelings and Kalashtar being the EPG equivalents to the Genasi and Drow in FRPG.}
-- PH3: From the cover art we know - Minotaur and Gith (probably both Githzerai and Githyani in the same format the Shifter was done)
* Classes:
-- PH3 Power Sources: Psionic, Divine, Primal
-- PH3 = Monk - Psionic Striker (the cover Gith is definitely a monk)
-- EPG = Artificer - Arcane Leader (from the cover art of PH3, I'd almost be willing to say it looks like the minotaur is an artificer with the magical glowing runes on his gear, but more likely its a representation of one of the new primal classes)
Opinions:
First off I am not really happy to see Divine and Primal on the list. I would rather there have been a second new power source, and perhaps a new Martial class.
We currently have the following class breakdowns by Power Source:
* 5 Arcane (Controller, Defender, Leader, 2x Striker) and will be gaining another Arcane Leader with the Artificer taking it to 6 Arcane classes.
* 4 Divine (Controller, Defender, Leader, Striker)
* 4 Martial (Defender, Leader, 2x Striker)
* 4 Primal (Controller, Defender, Leader, Striker)
Each Handbook has had 8 classes, so we can assume PH3 will have 8 classes, with 4 being the "New" Psionic power source (one for each Role the way they did Primal). This will likely mean 2 more Primal and 2 More Divine classes making the class power source distribution:
* 6 Arcane
* 6 Divine
* 4 Martial
* 6 Primal
* 4 Psionic
Does this mean PHB 4 will have 4 New Power Source classes, 2 Martial and 2 Psionic?