I doubt there will be 2 clerics, and even if, my bet would be on Minthara (for Absolute playthroughs, where I'd expect many companions including SH to leave or even fight you).
Past Baldurs gate Games gave you options in companions to where there were multiple choices for what kind of wizard would be joining your party, what kind of fighter or cleric and so forth. So I hope there are 2 or more cleric options, in fact even though it would require resources I hope a lot of characters get implemented as potential party members so there is a really varied cast, with the Origin characters having the most story and world significance.
