I have yet to see any thing with regards to the pay hike. The transport allowance and overnight allowances had an increase but other than that nothing so far.
There are expats with SIA (not many)but all of the contract were renewed on a local term " no allowances given"..
As of now only SQ Cargo have an expats package and I can see that going away in the near future. Only local terms will be offered in Singapore.