It will preserve all the public content of an "in memoriam" account, even if the user's Pro membership lapses. Flickr will also lock it up to prevent bad actors from logging in and taking over. Users who know of an account that doesn't have a caretaker and needs to be memorialized can ask the service to change its status right here. Finally, the service is axing its bulk license change tools in order to make sure members don't mistakenly flip the CC licenses on their images unless they meant to do so. They can always switch their items' licenses individually on the photo page itself.