Spores is somewhat borked in PnP, with key abilities competing for your reaction. I expect Larian will make significant changes to deal with this - probably by making the aura always on. Still, I don't think it's strong unless you multiclassed into something that would give you extra attack (hint: 6 levels swords bard).
Tempest, on the other hand, is one of the strongest subclasses for clerics who want to do gratuitous damage, and I see no reason to expect significant changes from PnP.
