Xeviat
Dungeon Mistress, she/her
I think you'd probably see less halfling, gnome or other small race being front line warrior classes since they'd be rolling a d6 for hit points. You might get more wizards and sorcerers having lower Constitution scores since they have a d8 instead of a d6 hit die (it might be just as likely that they will keep the same 14+ Constitution) but I don't think that you would otherwise see much of a change in the other classes.
Small races would get +1 AC to make up for it.
Sent from my iPhone using Tapatalk