Yes.So would Wombat be a race or a class in this example?
Sure. You could do away with the class system entirely.Couldn't the same be said for a "fighter" or "barbarian" or "thief"?
You might be able to have:
Fighter/Magic-user/Thief
Fighter/Magic-user/Cleric
Click on the red "D&D 5E Info" button up top.What is actually known about Themes so far, beyond that they exist?
EN World D&D 5E Info Page said:
- Themes cover potion-makers and blacksmiths. Like kits from 2E. You can improve in that theme with feats etc. Or you can use skills and feats to customize your own theme.
- Themes such as commoner, noble, knight, apprentice. Also planetouched, deva, avenger. There is one called "pub crawler". So you can have an avenger themed paladin.
- Themes tie into open-ended skill system - skills for specific themes.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.