If her series struggles to sell, and her book sees diminishing returns with each relaunch, a brief hiatus might be the best thing for the book.
In the short term, fans of the character will be missing out, but taking a break and relaunching with hype from the movie and two creators that doing very well outside of Marvel & DC might get the book to perform better than it has in years.
Right now the book is doing 15k, and if it continues doing those numbers it's only a matter of time before Marvel cancels it, especially if it doesn't pick up after the movie. With some planning, a brief break, and a creative with some name recognition, the book could stabilize in the 30k to 40k range.