How feasible would it be to make these video's play in a SVG framework that uses SVG text for subtitles? Translating those subtitle files would be really straightforward. Unfortunately, using SMIL is not really an option for the timing as that isn't supported by MS, so we'd have to create some js framework for that or maybe Fake smile if that would do the trick. Doing it in js would still be fairly simple by taking the text and start and end times from a txt file, but doing more complicated stuff would be more work in js.
I am not sure if you can overlay SVG content on top of video content as that would be really neat, but it would be quite nice if it would be used as an SVG showcase as well. I've seen demo's with animated video content, so my gut feeling says it should be possible. Using that we could use the Icon symbols as well being displayed when something is being selected, follow the mouse pointer in a zoomed area with <use> in a clip and other sexy stuff, to create some really state of the art tutorials.
The problem would probably be hosting this kind of stuff. There are about 400 Million web users here in China that cannot have a peek at Youtube without VPN and I am not sure if Inkscape.org would be up to hosting it if just 0.001% of those would take a peek at a lazy day, just after lunch. I wonder though if there is some outfit around that would be interested in hosting this kind of thing as sponsors.
Apart from that, making such a showcase would also be useful for people interested in authoring SVG itself and for showing the advantage of using Inkscape for that.
I could make a proof of concept for that, but considering the amount of time involved, I'd first like to know what your thoughts are on this idea.