Personally I hope they don't implement a formation system, and If they do I hope we can turn it off. I find the little circles that your character are going to fill as they run there are off putting and kill immersion. Imo what they have now works for me.
DRAGON FIRE-AND DOOM Dragons? Splendid things, lad-so long as ye look upon them only in tapestries, or in the masks worn at revels, or from about three realms off... Astragarl Hornwood, Mage of Elembar - Year of the Tusk