We seem to have ISDN modules in the installer initrd. Is there any serious prospect of being able to do an install over ISDN? Likewise IrDA. We could probably also do without the DVB drivers too. Keeping the initrd size down would be useful, because it makes it easier to netboot (there are often TFTP buffer size issues, problems finding a location to decompress to, etc.)
We use the modules listed in /lib/modules/$(uname -r)/modules.networking and modules.block to define the list of modules we pull in. By doing this, we no longer have to worry about lists of modules to pull in.