CDRW. No one has been told that there will be no renewals. All expats have had their contracts renewed on expat terms last six months. Most guys who was not renewed are close to or over 60. But, you are correct in that the new hires (ex SIA expats) are all on local terms.
And, don't worry about SIA:s financial status. The 5,5 billion reserves is only the cash part. The net assets of the company are about 20 billion. They will be around loooong after you and I are gone.