My daughter had special order Jackson Premieres with an EE ball and an A heel, she had room for her toes and she is square as well. They fit well, but she didn't like the stiffness of the boot or how inflexible and heavy they felt. If you already know you like that boot, then going with the same thing only wider is probably a pretty safe bet.
My daughter wears Edea and likes them much better, but we do have to regularly stretch the toes to stay comfortable. The Edea is better for her skating, she likes the higher heel, low cut back, lightness, and how flexible they are but it was an adjustment at first.