In the next ES game the obvious progression is to be able to have more than one follower. It would be good to be able to have a whole gang of followers (atleast 4 of 5) join you on some adventure to clear out a dungeon or have a massive fight with bandits!

Use conjuration that is two. A follower their is 3 and I think you can get a dog also. Or on pc use consol commands

I have a ps3. While conjuration is an option, personally I don't think it is as enjoyable or as fun as it would be to take Jenassa, Vorstag, Marcurio, Lydia, Aela the Huntress, Faendal and Mjoll the Lioness along to clear out Halted Stream Camp! lol Followers have more personality and charm than conjured things, no?