This is following along with another post I saw about restarting class missions to get a fresh feel of the story before the expansion comes out. Got me thinking that resetting companion missions would be nice too.
I'm sure lot of people would just use it to make snoo snoo on their romance-able companions again, but for those who completed that stuff years ago and don't level alts, the companions can get kind of stale after a while. You pick the one that best suits your needs in game play and collect dust with the rest.
A reset item purchasable with Cartel Coins would be great for this. It would encourage free-to-players to subscribe for the free coins and it would give players a choice for a companion story reset instead of forcing everyone to do it.