Thanks for the question! We have been looking into an LTI integration. It's not something that's on our immediate roadmap, but it's something that we're looking into.
It might be helpful to understand from your point of view how such an integration might work.
Do you imagine configuring an external resource that points to a specific RStudio Cloud project? Or do you see the external resource pointing to a specific Space for a course, which would have some number of projects / assignments within it.