With all that family drama, she might get one or two more before Gaiden ends XD
She isn't. The movie takes place after Gaiden and she has one tomoe sharingan to begin. Though, she might get a second tomoe during the actual movie.
ot: Characters aren't all about power.
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But yes, with the way things are now it doesn't look like she'll be able to compete with Bolt in terms of power.