I've decided to use ConTeXt instead of LyX/LaTeX and at the same time moved (back) to (n)vim from Emacs and wonder if https://github.com/adityam/vim-context does contain latest vim support for ConTeXt?
There are multiple vim plugins for ConTeXt. The one that I maintain at the link you listed above. It only provides syntax highlighting, a rudimentary intentation plugin, and some keyboard shortcuts: `a -> α, etc. These depend on IMAP helper which is distributed as part of vim-latex. If you have vim-snippets installed, you also get some shortcuts like: sec<TAB> expands to \startsection[title={<++>}] etc. I don't have any compiler plugins because I simply run atchange context on a seperate tab, so I get automatic compilation on each save. Aditya