[watchfirst9]

Not a useful line as westward, the line goes to the Jurong Industrial area, which doesn't offer much high paying white collar jobs.
Eastward no business districts either.

Also having the line going through King Albert Park stn isn't optimal imo as it doesn't offer a direct link for residents in both Beauty World area and Clementi.
Nothing much at KAP except for MGS and the small mall that is now owned by Tuan Sing.

Few stations can be skipped as our population and economy growth is set to slow down significantly.
Downtown Line 3, Circle Line 6, Jurong Region Line Thomson-East Coast Line all similarly have few unnecessary stations. 

Wasting money if no crowd to sustain. Easily multi billions waste if not careful.