Svc 969 is expected, sooner or later, when Tamp Nth is developed
and Tamp Ave 12 is realigned, there will be stops there (It is part
of the boundary of the town either way). Either way, still got Svc
127.
Svc 129 route checks a lot of boxes IMO. Using Bartley Rd East,
which in good conditions, connects Bishan/Serangoon with Tamp in
15-20 mins, TP to Ave 4 (Tamp West MRT), and serve the full stretch
of Ave 4.
Svc 127 is pretty much a complement service for Svc 72 (Svc 969
for AM return sector, seeing how packed Svc 969 is). Very high
chance to amend to Tamp Nth.
Svc 18 is expected to be thrown out of Tamp Int, since loading
normally picks up around Ave 7, not sure about Svc 39 though,
loading from Int is slowing going up (Still low enough though) and
more pax will be pushed towards Svc 20/291/292 since Svc 39 no
longer serve Tamp Int. Loading between towns still won't be
affected though, since actual loadings only starts from Ave 5
onwards.