I wonder if William will change that for Charlotte. In fact it’d be better if Charles did it now.
I'm not sure if they will. I would have expected, if the intention was to level up the sexism of it, that when the LP's were issued for the Cambridge children prior to George's birth they would have done it then.
It was a prime time to re-write them going forward when neither William or Harry had children yet. But they didn't. In the changing "The eldest son of the eldest son of the Prince of Wales..." to "All children of the eldest son of the Prince of Wales" they literally only changed it for the then future Cambridge children.
They were changing it because if George had been a girl she'd have been a future Queen but entitled to a lesser title than a younger brother. Yet the change didn't even future proof it for that possibility - she'd have been HRH Princess, she'd have been future Queen, but her own future children still wouldn't have been automatically entitled to titles.