>>107432402this is coming from a huge fan of hers - I would not mind in the slightest if they changed up her powerset in a live action adaptation. The only time her powers had any thematic importance was when she could shapeshift and took on classic Ms. Marvel's appearance.
>>107432451Embiggen isn't a knockoff if it's all extensions of her limbs and maybe her entire body if she pushes herself. This would also have the added bonus of giving her an agility boost if she embiggens her legs rapidly.
If we're not basing it on her existing powers, then the only requirement for our ideas would be something that doesn't clash with her costume design - although for the realism of the MCU they may have to rework the mask.
With that in mind I would go for fabric-kinesis. She can control and manipulate fabric that she touches, changing its mass or making it as hard, elastic, sharp, or large as need be. That way her scarf could also be her weapon.