This is news for Ecohilll link published in news a few days ago.
http://www.chinapress.com.my/node/559342The ecolink is believe able to handle 100,000 traffic commutations.
SEH will have 6300 houses including highrise
EcoMajestic will have about 10,000 houses including highrises
SEH 2 is believe having about 10,000 houses as well, as the land size similar to Ecomajestic.
If assume all occupied and one house has 3 cars, that will be 26,300 x 3 = 78,900 cars.
So, it seems like no problem for the ecohill link to handle the traffic even all the houses in SEH, SEH 2 and EM are fully occupied.
The challenge now is the traffic from surroundings, if the developements in the surrounding is really intense and matching the volume in this township, then perhaps we will encounter the traffic congestion again..
But I am pretty sure it will takes some time..
Once the Lekas interchange of Ecomajestic is opened, I presume it can help to divert some traffic as well, then at least can ease the pressure of cars commuting along the Ecohill link...

Samkor, this is not the Lekas interchange but another elevated bridge to Bandar Rinching, right?