c0ndu sidenote to get out of the way... i find the class labels to be off putting. 'duelist', 'sentinel' etc. Cypher and Sova do seem more similar(being scouty) than Cypher and Sage who share the Sentinel class label.
In any case, i agree that info will be super important. because, all things being equal(player skill, weapon picks, etc) the team that knows more about enemy movements will have the obvious advantage. So Cypher and Sova will likely be pretty regularly picked. or at least should be.
Heals and rezs are strong as well. people spend 1000 creds on 50 armor every round. So how could someone not value a heal that can bring someone from 1hp to 100 multiple times a round. some other characters can heal themselves, but sage's heals are so versatile and strong that shed likely be a must pick for comp players.