DISCLAIMER: these images are here just to show you which blocks will be present in the end, they will not be used as they are. They are a proof of concept.
As promised, here are a couple of drafts (have you noticed the bold font?) for the future UI: they are not meant to be the definitive interface, they are here only to show what widgets/views will (probably) be in the final dialogs.
Load dialog
The load dialog is very similar to the actual load dialog: instead of folders, the central view will show metadata (here represented with the “folder” icon) and files associated with the tags already selected (and written in the breadcrumbs). When you will “enter” a metadata, view and breadcrumbs will be changed accordingly.
On the left there is a panel showing the recently used tags, so you will be able to use them as shortcuts.
Save dialog
Ok, the save dialog will probably be completely different: on the right, there will be a view with the list of metadata that the user has chosen to associated to the current file; on the left, a view will show the recently used tags (as before), and another view will collect suggestions given by the program (and the program itself will provide them, using some internal logic).
At the bottom, the label of the document (or resource, as called in semantic terminology), which will be the final filename (even if it will be completely trasparent to the user), and a space for a comment to the file, maybe automatically filled by the program, as before.
So, that’s it! You can see some changes in respect to the actual system, probably the saving system will be the main change.
Stay tuned, as I am studying how to realize the internals of the project, so soon there will be some ideas (or even diagrams!)…
Syvo3 
this has possibilites to become the greatest thing ever, just make sure it doesn’t become too tedious to just quickly save something. if possible, consult a usability expert
Of course I will, probably when the new dialog backend will be ready and I will start developing the final UI.
An idea could be to add certain suggestions as “default”, and automatically set them when the saving dialog opens.
Is this going to totally replace the save file dialog? If so, the dialogs seem to be missing a way to switch back to browse mode. Not that I never want to use this new system, but it seems like for small “don’t care too much” files it would be nicer to just pick a place still.
Thanks for using recaptcha BTW 🙂
If the text next to “label” will be the filename, write better “filename”.
And ask please some usuability guys about this dialoge…
But it looks good.
@orkybash: no, it’s not; it will live in parallel with the existing one, and of course there will be an easy switch between the two.
@pappnase: we thought about it, but I think that “filename” would not be appropriate, mainly because its use as the real filename is somewhat “under the hood”. Anyway, we will see later about this issue.