I heard the success of the China-Laos Railway has been a huge motivating factor for Thailand and Myanmar to get their respective projects completed. I think I remember seeing an estimate that the Laos railway could increase said country's GDP growth by 1.6% in 2023 (previously projected to grow 3%, an over 50% increase).
It's a perfect illustration of the BRI strategy- you can either hop on the development train or see all of your regional rivals leapfrog you by light years. Hopefully it'll convince the Philippines as well.
Yes, both the China-Lao railway and the Chinese-built Jakarta-to-Bandung HSR are excellent showcase projects for region, but I doubt the Philippines will get involved, they're too brainwashed, too anti-China, too short-term and therefore will remain in the 3rd world.