Create an S3 Replication Profile option during New Task creation, where the Target Endpoint data would be treated more like files instead of Database Schema/Table/Column/etc... fields, and the Target Endpoint itself would simply be a pointer to a top level directory.
For example, in an S3-Replication-Profile task, I would select the Source Schema/Tables/Columns - but in the S3 Task type, instead of "Map to target table" it would have "Map to Folder" options (that would include the capability to add a dynamic formula field- ie: DATE).
IE:
Target Endpoint S3 Bucket Name = my-s3-bucket-name
NOTE: Upon clicking this link 2 tabs may open - please feel free to close the one with a login page. If you only see 1 tab with the login page, please try clicking this link first: Authenticate me! then try the link above again. Ensure pop-up blocker is off.