Inkscape doesn't have to "win", it doesn't have to be afraid of being made obsolete.
Awesomeness is free :)
But Ole, you seem VERY into the idea, so you should set about this project; I know there are tons of developers for javascript (although I'm not sure they're atuned to Free Software, so YMMV) but bootstrapping such a project can be done on GitLab very easily. Then when you have made it, keep us up to date here. There are likely developers who would be interested in helping out from the Inkscape project too.
Like I told Shlomi I'm currently actively developing these open source projects:
https://github.com/fireflysemantics/validator
https://github.com/fireflysemantics/slice
https://github.com/fireflysemantics/collections
https://github.com/fireflysemantics/is
And all the repositories under this organization:
https://github.com/superflycss/superflycss
And these are only my public projects. Which is about 5% of the code base of the logistics platform I'm building. There's also more Apache stuff etc. So I might be a spreading myself a bit thin, but I may still try. It would definitely be a fun project.
Cheers,
Ole