I haven't played since November, but I certainly hope there will be more companions, because I really did not like any of them. With the Origin characters they are also "diminishing" my character, because each has a story that is a potential PC, by design.
So I am neither Shepard or the Bhaalspawn, but a rather non-descript guy. Many games do the same, but reveal something later, and/or do not put characters at your side that are grander by design. With voicing them all, Larian is further restricting the number. Each character added and voiced all the times the cost is increased greatly. So we might see 1-2 more, but beyond that? Not likely.
I also do not think that Larian does companions well. Since they are all such grand specimen they naturally have a certain attitude, which is that of the natural leader. So they were constantly nagging instead of giving sound advice or actively helping. Further most interactions are centered around the camp and if you do not rest frequently you are going to miss out on interactions or they get dumped onto you in large amounts. Interactions are also mostly limited to the characters and you, there is little to no interaction, consequence and relationship between characters.
If you want only a limited amount of characters, this is fine, but then these few people should be formed into a homogenous group and not one guy that initiates dialogue and three that sit around and say nothing apart from critisising. Right now, all characters have the same issue, the tadpole, yet only the PC is concerned with the consequences, the others just tag along quietly unless the script calls for them to nag.
