For the races, here are my thoughts:
Gn is gnome.
G + o is goliath.
D + e is deva, which is the renamed aasimar.
S + h and r is shifter, I think
MM is getting tricky with us.
H is half-orc.
For the classes:
B and B are barbarian and bard.
D is druid.
S and S and definitely sorcerer and most likely shaman.
T is probably theurge, given that a divine controller is practically given.
I is inquisitor, given that they want to fill out the divine classes.
W is most likely a primal class, either witch or warden. If the druid is primarily a conroller type, I'm going with warden, if not, witch.