[adsfqwop]

This is only a guess, but I get the impression Album Archive is some sort of aggregator service. The original Blogger images appear to still be stored in Blogger's own media manager.

For example, many images referenced from Blogger posts contain links with URLs like https://1.bp.blogspot.com/... further strengthening the case that these images originate from Blogger, not the Archive service.

So in summary, my guess is that shutting down Album Archive will not affect Blogger media files.

Another case for this conclusion, is that it seems totally insane to delete all of Blogger's media files, and not inform Blogger users directly, but instead do it through some obscure Archive service notice.

Would be nice to get an official confirmation on this, but let's say we can make an educated guess that people's Blogger photos are probably safe.