SW
Given there is tennis, Glastonbury and the Women's World Cup on Saturday afternoon, all of which could wildly overrun and the latter of which may have featured England when the schedules were finalised, it seems pretty sensible to move it out of the way of all that to me.
I notice that the regional news is currently listed to be aired after the lunchtime rather than Evening news next Saturday. There is no obvious reason for this as the evening news is listed as 15 minutes a duration that is frequently used for the combined duration of the national and regional on a Saturday and furthermore there is nothing that couldn't be moved by 5-10 minutes at any point on Saturday evening.
Given there is tennis, Glastonbury and the Women's World Cup on Saturday afternoon, all of which could wildly overrun and the latter of which may have featured England when the schedules were finalised, it seems pretty sensible to move it out of the way of all that to me.