Hi there!
In the spirit of coordination and transparency, I’d like to share with you what we (at Ericsson) plan to work on in the month of June time frame, for Clangd.
- Watch compile_commands.json for changes and update accordingly
- Symbols in document (textDocument/documentSymbol)
- “auto” (and decltype?) hover support
- Semi-related to Clangd: Cross Language Support Investigation/prototype (C++ → Java? Java → C++?)
I might start other threads about implementing individual features.
Disclaimer: Those are plans only, please don’t take this as a promise 
Cheers,
Marc-André