Currently, the only way to report or see the aggregate workload for a given assignee per sprint is to view the "workload by assignee" modal in a sprint. This does not facilitate reporting and cannot be focused on individual users.

Would it be possible to get a gadget that can aggregate the workload of assignees per sprint, or aggregate workloads by a JQL string or filter?

This would help to facilitate reporting and dashboards and assist in proper assignments and commitments.