Stephane, I believe you can use PowerShell remotely today if you install PowerShell 2.0 on Veeam Backup server and your console. PowerShell 2.0 fully supports remote operations.
There are no immediate plans to enhance PowerShell functionality (we had no additional feature requests before). There are however plenty of support questions, so it seems like the current functionality works for most customers today. Anyhow, your feedback for missing features is appreaciated as always.
Concerning actual reporting, please check out reports we provide in the Enterprise Manager. They are very flexible, for instance you can drill down into backup jobs there and get the same report you are talking about above (with one-click export to Microsoft Excel).