Long may Ms Kelly continue to present her morning show.
Whenever she does eventually step down, I see no reason for ITV to "replace" it with anything other than essentially "the same show" but with a new host and title.
It has clearly long been the right content on the right channel at the right time for the target demographic. Unless its popularity wanes even whilst Lorraine is still at the helm, or any replacement host quickly proves unpopular with viewers*, there's no reason the change it.
(*Highly unlikely, as they'd surely pick someone who has previously "auditioned" by filling-in when Lorraine is off, and has therefore already proved themselves a worthy potential replacement and popular with the viewership)
One race: The human race✋🏿✋🏾✋🏽✋🏼✋🏻