Will my Ubuntu One data be removed completely with the impending shutdown?
Solution 1:
Quote from their website:
You have until 31 July 2014 to collect all of your content. After that date, all remaining content will be deleted.
So your data will be deleted.
Solution 2:
It will be deleted, yes. It is currently stored in Amazon's S3 service, and on July 31st we will trigger deleting all the data from the S3 bucket. Canonical will no longer have access to the data. From then on, it follows Amazon's standard processes to delete that data within their infrastructure.