Of course, you should always check with her coach, but you're very wise to think ahead now. All too often, parents put off skate shopping until the last minute and the kid ends up skating with bent toes or sore ankles, lol.
If the Jacksons work for her, don't apologize, stay with that brand. The Mystique has very lightweight support and the blade's pretty flat, so she'll have an adjustment period.
I would suggest the Artiste model for a small, light skater who is doing low-level freestyle. The Mark IV is a okay beginner freestyle blade. The Classique will be too stiff for her, but I think she'll be fine breaking in the Artiste since she's jumping.
At her age, she's going to outgrow the skates before she breaks them down (aka: wears them out) anyway.