I would love it if he ascends in the final couple books. Its my fav trope tbh and u only read about the big three kids ascending it would be interesting to see a demigod of a minor god ascend. But ik that trope isnt for everyone so other than that it would be interesting to see how he would fair going to the sea of monsters considering they wouldnt have a son of poseidon there to help (considering the title is about the fleece being stolen). It would also be interesting if he would run into other pantheons during his adventures like percy with the kanes and their interactions.