Also I noticed there aren't any holy symbols or any divine focus items in the game. Is that intentional or part of the setting that is coming later? Do clerics use them for anything more than just a badge of office basically in Novus?
That is something that I would consider to be more of a "flavor" issue, in defining how casting spells for a given school actually works.
For example, you could have it where Clerics are required to use their Holy Symbol as a focus (much like how wizards in Harry Potter use wands) in casting. In most cases, the Holy Symbol does not impact (unless it is magical or made with special materials) the actual casting of spells, but if it is missing, the CTNs of all spells are increased by 2.
Thus, if your cleric has a pewter holy symbol, it will work just as well as one woven out of straw. However, if this is a cleric of a sun god, having a Holy Symbol carved out of a special type of yellow crystal may give a +2 to all spell casting.....