There's no reason why any channel would close. The channels are able to coexist perfectly fine at the moment and that will continue.
If there want CC on Freeview something has to go.
Comedy Central's content is very thin these days anyway, it's virtually all Friends. A far cry from the Paramount Comedy days.
Its been like that for years, I remember back in 2011, it was all Kings of Queens, Everyone loves Raymond and Two and half men.