I think about RTS this is more for SG Government initial stepping stone to expand in JB together with Johor State/Malaysia Federal Government.
Johor - Singapore Special Economic Zone is one example as a reference for Singapore Government initial stepping stone to expand in JB together with Johor State/Malaysia Federal Government.
I see it this way...
"The RTS Link, a rapid transit system connecting Johor Bahru, Malaysia, and Singapore, is owned by two infrastructure companies: Malaysia Rapid Transit System Sdn Bhd (MRTS) for Malaysia and the Land Transport Authority of Singapore (LTA) for Singapore. The RTS Link will be operated by a joint venture called RTS Operations Pte Ltd (RTSO), a partnership between Prasarana Malaysia Berhad and
SMRT Corporation Ltd."
I think this joint venture project for RTS will not simply stop at Bukit Chagar Station only but it would expand to other parts of JB City but outskirt towns of JB City e.g. more RTS railway system extended Iskandar Puteri districts and also to Tebrau, Pasir Gudang, Mount Austin etcs...
I can see the potential and opportunity for SG Government to work together with Johor State on this railway extension in JB. Most of the railway systems in KL are operated by Prasarana Malaysia Berhad hence good business for both SG and Malaysia Government.
Whether it would benefit Singapore and Singaporeans from this Investment/Joint Venture...maybe in a way like for Singaporeans have the opportunity to work outstation like an expatriate especially management level staffs OR an opportunity for Singaporean Entrepreneurs to branch out/setup/business expansion in JB/Malaysia...