No, Rosesprite came from the dead GO timeline Rose that Jaspersprite dug up. There’s no canon example of a living god-tier player being prototyped.

She was Dead yeah, but there’s no reason why the same entity being prototyped before or after death would change much! In fact, if after dying a Heroic Death she comes back with her God Tier powers, chances are if prototyped Alive they’ll also be there.