i know the story is probably already written but i think it would be good if after Amanda's death Zavala leads a siege on the witness to reclaim the traveller Zavala would sacrifice himself inside the traveller to free it from the grasp of the darkness as he does so he vanishes into light the traveller then wakes up.. later on amanda would show back up as a titan eventually becoming the titan vanguard note: this is a bare bones idea it would need alot more added to it for it to make sense it would also need to lead into final shape i think as the dark and light struggle against each other they will magnify each other making are power even stronger but also harder to control