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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/MIME-Types-2.290.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 68 KiB
[ebuild  N     ] dev-perl/Email-Date-Format-1.8.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 17 KiB
[ebuild  N     ] dev-perl/MIME-Lite-3.33.0::gentoo  USE="-minimal -test" PERL_FEATURES="ithreads (-debug) -quadmath" 81 KiB
[ebuild  N     ] dev-perl/MIME-Lite-HTML-1.240.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 63 KiB

Total: 4 packages (4 new), Size of downloads: 228 KiB