Emerald west should have it already cos Anggun 1 and Anggun 2 got it in Sept/Oct 2015. But according to bro Alan Chin, GAN PEI NEE FB mentioned 10 years to get UNIFi which i doubt. Anyway, not me to judge / speculate. Good to know EW has UNIFI now.

I don't think MS will launch M Residence 3. MR2 still have lots of unit not yet sell. Besides, MR1 still have phase 5 and Phase 6 which is next to Orchid Farm. I think MS will focus at MR1 and MR2 while waiting for economy to get better before launch MR3.
my understanding, phase 1-4 sold out. But potentially Phase 5 and 6 coming soon. You can see the land clearing next to Orchid Farm.
I don't think will be sufficient to upgrade to 6 lanes due to river and private land in between. The upgrading to 4-Lane also take longer time due to different department involvement such as DID to shift river flow and build tougher wall.