-snip- A person familiar with the matter suggested Wallace may be jumping to CNN Plus, the new streaming-video service slated to launch early next year. Spokespersons for CNN could not be recached for immediate comment. Fox News last announced a contract extension for Wallace in 2017, and his current agreement with Fox News is believed to have come to an end. -snip- Bret Baier, John Roberts, Shannon Bream, Martha MacCallum, Neil Cavuto, Dana Perino and Bill Hemmer are among the network’s news staffers who are likely to take the Sunday seat in weeks to come, according to a person familiar...