My initial response would be nobody.
But I'm old enough to remember when Alex Trebek replaced Art Fleming as host of Jeopardy. They said nobody could replace Art Fleming. So if there is money to be made, someone will take it over.
Fellow Canadian-American Pat Kiernan! Morning anchor on NY1 - does my favorite segment "In the Papers" where he literally reads articles from the newspapers. He also hosted The World Series of Pop Culture so he's good with the format. Perfect dry humor and wit.