I know this,
but I see that in the agreement Eric gave a link to (in
German) it is stated that the depositories will be migrated as well.
Does it mean that they will be given some deadline after which the
files
not appropriate for Commons should be hosted locally at individual
projects? To me it looks indeed like the most logical scenario, but
I am
pretty sure that not a single new Wikivoyage project (I am not sure
about German and Italian ones) started to think about the fair use
policy.
There's no reason why they should.
Files not migrated to Commons could just be imported on the biggest
language version; the other projects and especially new ones could
waste time on non-free media later if they wish so.
Nemo
If not for other reasons, just because of the Freedom of Panorama
issues, which become really important for some segments of Wikivoyage.
Cheers
Yaroslav