Upper East Coast -> Tampines (Loop), also stopping at Century
Square, Tampines 1 and Tampines Central 1/Tampines Concourse, those
bus routes that did not get served. There is no space at Tampines
Interchange after the introduction of 20 in 2013.
Tampines Interchange Extension will be opening soon :)
It provides a long-waited complaining connectivity from Bedok
North Road (Fengshan Market) / Tampines Avenue 3 to the respective
MRT stations.
68 will only be from Pasir Ris to Tampines Concourse (Loop), or
don't do it at all. Bus 46 took over my stretch.
Anyway, all these are my suggestions from 2014 (feedback to
LTA).
It can also be extended to Pasir Ris, the main reason is to
decentralise the crowding of Tampines Interchange. But some of the
routes will be under Go-Ahead (if it is 68). 46 is SBST.
Poster did not state looping at Tampines Interchange. If looping
then the poster would be somehow like Svc 256/258, continuous
journey between Joo Koon - Boon Lay (Loop) and Boon Lay - Joo Koon
(Loop) respectively.