I think it'll be increased to 5.
I'd personally do, in order of importance: Kerevi, Cooper, Koroibete, Skelton, Foley. If there's a 6th I'd take Arnold, a 7th whack on BPA. Mind you this is banking on Latu going. If Latu doesn't perform next year I'd probably take BPA as a 5th, dropping Foley.