It sounds like there's some confusion regarding RiftRunner here. RiftRunner is party based meaning you have full control over all characters. You may not get to control some NPCs, but they will support your team. By this, you have at least one Good character and one Evil one, and you will essentially have the option of selecting one to be the spokesperson of the party, or treating them as peers.
As to having full control of the party, I did ask Lar that for my interview, but he didn't want to comment on that yet. He didn't know yet if it would be full control or that the party members have minds of their own and agendas of their own. Neither did he wanted to comment on the size of the party.
So unless I've missed something somewhere you are only speculating here.
