What the OP was looking for still does not exist. Both the plugins above are nice, thought I have stopped using the move during combat because it is just too much moving around and it lowers my dps more than i like. Would be neat if the characters following could do it in a less obvious way. I do not care if it is paid content.
** Want to add at least a suggestion. I love the option for how far to follow behind. I use it for sure. But maybe another setting for how close the follow toon will come up on the leader.