Main idea : Add special interactions to special followers such as Bishops, Aym and Baal, Sozo...
Explanation: These followers are quite unique and the fact that their uniqueness isn't shown often is a little underwhelming.
Perhaps an option to "Talk" could be interesting (even for our strong and almost mute Heket or deaf Kalamar), a choice wheel for answers could also be quite fun ! Gaining a bit of knowledge and growing our relationship status with those who wished to destroy or help the Lamb.
For the demon summoning circle, maybe they could be summoned as actual followers regarding their uniqueness ? Have little bits of their old powers yet in a much more weakened state. If they die they could yell at the Lamb at how bad they were at protecting them or things like that.