These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] media-libs/libva-2.24.1:0/2::gentoo  USE="X -glx -wayland" 300 KiB
[ebuild  N     ] media-video/libva-utils-2.23.0::gentoo  USE="X vainfo -examples -putsurface -test -wayland" 1252 KiB

Total: 2 packages (2 new), Size of downloads: 1551 KiB