As of the June 2022 WGAG update, neither Parulidae nor Passerellidae has been completed. So I would be surprised if there are any changes to Yellow-rumped Warbler or Fox Sparrow. Of the groups that have been tackled and which effect widespread native ABA area birds, we might see a split of Franklin's and Spruce Grouse, which one of the NACC checklists mentioned was already accepted by the committee. We might also see a split of Green-winged Teal, Northern Pygmy Owl, Barn owl and Orchard Oriole, since owls, ducks, and New World orioles have been completed and IIRC IOC/BLI already splits these species. Otherwise I don't envision many additional changes. Although I might have forgotten some. Might be one or two
(This of course assumes that these splits were accepted. IOC hasn't lumped them, but might be holding off anyway)