I would like to see more variations in profession and skills for their skills to actually be usable. I for one am tired of having a stealthy follower refuse to lock pick doors for me if I'm playing a WarriorMage. If I happen to have a follower proficient in Speech or Smithing I'd like to let them handle the arms trafficking side business we set up as a result of our adventures.
I'd also like for followers to be fully fleshed out. I would often gravitate to followers from guilds but after the quest lines are completed the go back to being generic voice actor # 5. If they could retain their personality from before and have shine through the chaos that is exploring Tamriel I'd greatly appreciate it. Anyone else have questions, comments, concerns, or suggestions on the subject of followers?