Will other spells, as per the RPG game, be available? i.e.:
Bigby's hand spells
Other spheres (numbers and so on for spells like Probability Control)
Familiars for mages, will those be available? It would be pretty cool if clerics were permitted the same (as per 1st edition in the Unearthed Arcana, I believe)
Muls (from 2nd edition)
Kobolds, goblinoids, giant kin (firbolg and the like)
There are handbooks from the 2nd edition as well that contain a lot of information that could be utilized as well.