Do you foresee any changes to CPF interest rates or CPF withdrawal age?

To be honest your guess is as good as mine. Obviously, both are very sensitive and important decisions that I am sure the government will deliberate over for a long time before deciding. The interest rate as you know is not really guaranteed. The 2.5% OA interest rate is linked to the Singapore bank deposit rates and the 4% SA rate is linked to the 10 yr Singapore government bond rate + 1% so can be changed in the future if they wish to. There are no signs they will change but they can. The withdrawal age is something we can theoretically say should be moved up as out life expectancy rises and we should push back the time in which we withdraw from the CPF pool. However, both are political decisions and not just purely an economic/financial decision and so that is why it is harder to forecast and I am sure the government will do what they see is the right thing for Singaporeans whether people like it or not.

Changes to CPF interest, unlikely since that is highly political and senstive. Withdrawal age, maybe and possibly.