You're a braver man than most to even try that.
Part of me gets a kick out of the idea of Halsey being encrypted into the Domain and becoming a new Cortana for all practical purposes.
A chap on the FUD forums suggested that since Halsey is off to meet the Librarian or whatnot, she might be able to take control of the Prometheans like the Librarian did. That would be slightly wonky but also potentially interesting, especially as Halsey is essentially alienating herself from humanity. Her being a free agent in the galaxy could offer some interesting hooks.