Rachel Reeves in Burnham Cabinet?

Will Rachel Reeves be confirmed as a minister in the United Kingdom Cabinet formed as a result of Andy Burnham being appointed Prime Minister, between Andy Burnham's official appointment as Prime Minister and the seventh day thereafter, 11:59 PM UTC, with any reappointment or confirmation of continuation in a preexisting cabinet position occurring by the end of that timeframe, and excluding any interim or caretaker cabinet positions or ordinary ministerial positions not attending cabinet meetings?