What was stated in an interview regarding e.g. the spell 'Bless' it seems to me that Larian will hold in to their current design philosophy.
We will get higher levels with more powerfull spells, then they will not be used that much, because it's far easier to get similiar effects by just running around an enemy. Then Larian wants to change these spells to make them more appealing, and in the end we get something that ist a DnD game only by name and nothing else.
