Lisa Wilkinson has responded to suggestions she could return to the Today desk as a fill-in co-host eight years after her acrimonious departure from the breakfast show. Before an appearance on the show she hosted for a decade earlier this month, current co-host Sarah Abo joked on social media that Wilkinson, 66, should be her replacement for her upcoming maternity leave. "Ooh this will be fun!! Cannot wait!! Have you cleared your calendar for August..?