Yes I can, just have sasuke die, simple as that, or sakura, or even naruto for that matter, experiencing either would do the trick, also, considering how she awakened her sharingan it's not necessarily a death or a fake out that's needed. If it where to be sasuke, and he just used izanagi, it would literally cheapen and flatten the effect of his sacrifice in the first place, if they did it like you said, and reveal sasuke later, that would work for sarada, but would still be a cheap cop out to the readers, or just lazy writing