I wouldn't say she is doomed outside of Sakura's fighting style ... but nothing shows that she has anything else. We'll see.
So far she has been shown fighting in most of the teaser trailers, and it is the same thing but rehashed. SHANNARO, PUNCH, and then you see the Sharingan.
Nothing really else to go for.
Then in contrast with Bolt, clones, rasengan, and then the lightning jutsu at the end.
This time we got the Gentle Fist fighting style mixed in there.
I feel sorry for Mitsuki too. Like someone pointed out, he hasn't showed anything except stretching his arms