No I don't think I was aware of this. I've been playing with VSCode -> RLS Plugin -> RLS. It looks like this is not that, so I'm pretty excited to check it out.
This is part of why I think I never discovered rust-analyzer. I first looked at what's most popular in the VSCode plugin library and found RLS. I then browser searched for alternatives and kept finding RLS. I think I concluded that RLS was all there was.
rust-analyzer is effectively RLS 2.0 -- rust-analyzer development happens on the official RLS 2.0 working group communication channels. Assuming they don't "replace" the RLS name, the most likely outcome is replacing large amounts of code en-masse with rust-analyzer code.
Thanks for sharing!