Upgrading had started since early last year. Phase 1 is probably half done, but slowed down near e bridges. You can drive there to see for yourself.
I like to see some jams as it is a sign of prosperity. If is not jammed, I worry.
Started does not mean that it will be completed soon. It is normal that they started delayed for few yrs start again delay again and the cycle continues.
Tebrau highway the bridge linked to tampoi is a good example, it is started again recently and completed a bit and now stopped again no progress. It causes more jam now during knock off hrs.
Jam does not necessarily mean prosperity but instead it is mainly due to poor layout of the road and township design.