The Panopticon/The New Rani

Do we go on a case-by-case basis for deciding if Time Ladies/Lords get new pages for each new incarnation? Big Finish released part one of the The Rani Elite which debuts Siobhan Redmond's new incarnation of The Rani, but part one doesn't reveal if she's definitely the second incarnation of The Rani or not. So do we just edit the original Rani page until and unless Redmond's incarnation is given a number?