An article in AsianInvestor on the Asean Trading Link provides a few snippets on how the service is going so far – the story will probably disappear behind the paywall soon, so the main points are:
Bourses in Malaysia, Singapore and Thailand are gauging investor interest in trading ETFs, structured products and Islamic bonds via the recently established Asean Trading Link.
This makes sense – the exchanges need to ensure the link evolves and with the other three countries (Indonesia, Philippines and Vietnam) unlike to join soon, they need to find ways to grow it through their own efforts.