It would be great to see a spin-off using the already released maps showcasing you removing your bracelet and then going to get on a boat and then being waylaid by attackers only to wake up on Siptah, yet again, naked and with nothing. It would make for a great scenario and a chance to merge the two maps as an option.
Just a thought, I know some MODS can do this to a degree. It would however be fun to travel between siptah and exiles on the same map. Though may need some balancing due to some of the gear available on siptah. Also, for the love of gods, give legendary weapons a pass over on damage.