Nah, much of the Superman status quo is intertwined with and dependent on the Doomsday Clock stuff. That’s going to be a big relaunch point for Superman et al. Doesn’t mean they’ll get rid of all the characters (isn’t the kid’s name Jon, not Chris?). But they’ll want some new overarching plot/direction to keep people interested.
Putting Bendis in there is pretty much the biggest thing they could do. It’s one of DC’s biggest characters, with a whole natural ecology of books, which has generally been the way that Bendis works, but creating an overarching direction and then writing the flagships for it.
Writing a sidebook doesn’t make a lot of sense from a business perspective; All Star Batman didn’t sell to the level of Snyder OR King’s Batman, despite having Snyder with a bunch of big name artists and fan favorite villains.