Hi,
Firstly, ABH on conviction could carry a prison sentence of 5 years. Courts do have guidelines on sentencing and it can be a fairly complicated procedure. One of the things, for example, they may consider is whether or not the defendant pleads guilty or not.
I wouldn't place too much store by the early Court appearance because, from what you say, there's probably nil chance of a resolution of the matter only one week after she was charged. I'd say that it will be adjourned and could drag on for months.
The Court would also take her previous record into consideration.