San Miguel recently announced the South Access Link Expressway (SALEX) project, which is actually a multi-expressway system consisting of the following previously proposed limited-access connections
https://www.skyscrapercity.com/threads/southern-access-link-expressway-salex.2368116/1. R10-C3 Link (connecting Metro Manila Skyway Stage 3 at the Sgt. Rivera interchange with the under-construction Caloocan Interchange of NLEX Harbor Link and NLEX Connector) along 5th Avenue in Caloocan
2. Shoreline Expressway (CAVITEX-NLEX Harbor Link route parallel or along Roxas and Mel Lopez Boulevards) linking Pasay, Manila (Malate/Ermita/Tondo) and Navotas
3. Quirino Avenue expressway spur, from Metro Manila Skyway Stage 3 at the Quirino/Osmena bend in Manila's Paco district west to Shoreline Expressway in Malate, Manila
4. Buendia Avenue expressway spur. Unclear if this is just from Shoreline Expressway in Pasay to Skyway Stage 3 in Makati, or a full Buendia Avenue expressway east to EDSA and BGC.
In addition, the Ayala Boulevard/Pedro Gil Street corridor in Manila is also part of this project.