Yea, answering this question would require more space than what's available. For right now, I would be happy if they included all the races, sub-races, classes and sub-classes from the players handbook. Getting bards, barbarians, druids (which would make interaction in the druid grove interesting), paladins and the like would be awesome. After that patches can be released with races and sub-classes from xanathar's and the like.
Critters wise, again, there are so many options to choose from. I know a lot of people think trying to stay to the D&D universe is a bit restrictive, but there are soooo many options to choose from. Kobolds would be cool. Especially a whole clan of them and being able to interact with the little shytes. :P
