RTS Link rolling stock and railway systems contracts awarded
https://www.railwaygazette.com/projects-and-planning/rts-link-rolling-stock-and-railway-systems-contracts-awarded/59105.article
Though railway link between Johor Bahru and Singapore is important, there should be a tram or subway system inside Johor Bahru to let more people use public transportation.
Since Singapore itself is a big tourist attraction, many tourists in Singapore would easily visit Johor Bahru additionally, if Johor Bahru has such a system.