Comment 41 for bug 1498059

Ok, trying to install the listed replacements won't remove my patched versions of libsdl2-2.0-0 and libsdl2-2.0-0:i386 anymore. Previously they were going to be removed due to missing libwayland-egl1-mesa-lts-* is the list. Looks good so far.

I experimented a bit more, removed libgl1-mesa-glx-lts-wily:i386 package, then used autoremove to get rid of some packages that it depends on (excluding the ones needed by libsdl2-2.0-0:i386).

$ hwe-support-status --show-replacements
linux-generic-lts-xenial libwayland-egl1-mesa-lts-xenial libgl1-mesa-glx-lts-xenial libwayland-egl1-mesa-lts-xenial:i386 linux-image-generic-lts-xenial xserver-xorg-lts-xenial

So the replacements list got one package shorter (as expected), but there were no issues when trying to install these packages - both 32-bit and 64-bit libsdl2 were kept intact. I guess it's libwayland-egl1-mesa-lts-xenial:i386 package that takes care of what's needed by libsdl2 now.