This is probably possible for other countries in the world as well. But it is a matter of finding people willing to create such a map.
I also think this should not be done on the main osm.org website, as it is not a Google maps clone, but mainly a tool for mappers.
It’s just a simple OpenStreetMap road map overlayed on the AGIV picture. if anyone has a transparent OSM style lying around, I can make a pretier version. In Mapbox Studio anyone can build a personalised OSM map using live data. It takes only very basic coding skills to integrate this into a Leaflet map. You can see the source code for this example here: https://github.com/osmbe/play
Someone smarter than me could probably add a fading bar, if needed at all. I personally like switching background maps more.
The alternative would be to stitch imagery sources from around the world together. Which is in fact available here: https://github.com/osmlab/editor-imagery-index
Again, would take someone with more skills to actually use that data. But an interesting project.
I’m not quite sure I agree on the added value from a such project.
From my experience, where openstreetmap map shines (and perhaps this is unintentional) is not ‘the road lines’, but everything around them.
Combining merely it’s lines with aerial photography seems to ‘take away’ more from the OSM data then ‘adding to it’.
There is value however in using the aerial photography as a base layer for those helping to put into into OSM. Both the iD editor helps here, as there’s AGIV (‘Informatie Vlaanderen’ now, still not used to the term) photography available through WMS and within license.