1) PM's pay will be 5.3 Million and peasant's pay will stay
stagnant or reduced to remain competitive.
2) 3/4 of the population will be PRs and 1/4 Singaporeans.
Singapore's population would hit 6.5 Million to boost the
economy.
3) Lee Hong Yi steps into politics. 
4) 5 room HDB flats would hit $750K per unit on average. The
young can no longer afford their own home. Or they will either slog
out and use 30-50% of their monthly income to pay for their
loans.
5) Our labour force will switch more to servicing instead of
manufacturing. Become more like a tourist attraction country. We
have 2 IRs and lots of retail shops for tourists, PRs and
Singaporeans alike to spend.
6) Hydroelectric cars are introduced. More cars on the road. ERP
per entry hits $5-$7. Road tax and COE all increase.
7) GST increased to 10-15%.
8) Corporate and personal income taxes go down.
9) Birth rates hit to historical lowest.
10) Full accountability of investments from GIC and Temasek made
known to public. There will be internal audit of the finances of
the country. (hopfully i get to see this)
All these are just my guesstimates and are based on assumptions.
If I can predict the future, would be quite cool. lol! I would be
"head-hunted" by the government. 
so normal people will not have pay rise?
the starting pay of people 10 years ago is the same as the
starting pay of people now?