I have some suggestions:
Amend Svc 82 to make it Punggol Int - Potong Pasir
(Loop).
Introduce a short haul service 84 from Punggol Int to Punggol
Road End (Loop) just like 882.
Svc 198 can be extended to Marina Centre Terminal via
Chinatown so as to give Jurong East/West Ave 1 a direct link to
Chinatown.
IMO maybe Svc 181 can be extended to Jurong West St 22 (Non-stop
sector), 23 and 24 and then back to Ave 3 instead of U turn at the
end of Ave 3.
Maybe Svc 185 can be amended to ply Holland Ave, Holland Rd and
North Buona Vista Road instead to give Jurong East/West Ave 1 a
direct link to Holland V also?
Maybe can integrate Svc 60 with Svc 18 to make it Eunos Int to
Tampines Int via Bedok Ctrl?
And as for the future Joo Koon Interchange (or Terminal)
although it is too early to say but I predicts that Svcs 79,
182, 185, 192, 193, 251, 252, 254, 255 and 257 might be moving
to the new interchange.
Things might goes like this:
79 - Jurong East - Joo Koon - The present routes remains
unchanged but instead of entering Boon Lay Int after Jurong
West Ctrl 3, can proceed to replace 193's route from Jurong
West St 64 to Upper Jurong Rd (SDC) before entering Benoi Rd and
Joo Koon Int.
182 - Joo Koon - Tuas South (Loop) - Cut the parts between Boon
Lay Int and Upp Jurong Road.
185 - Joo Koon - Buona Vista - Replaces 257 in Jln Ahmad Ibrahim
and before proceed to Pioneer Rd North.
192 - Tuas Ter - Joo Koon Int (Loop) - Cut off the
parts between Boon Lay Int and Jln Ahmad Ibrahim (Before Benoi
Rd).
193 - Tuas Ter - Joo Koon Int (Loop) - Cut off the parts between
Boon Lay Int and Upper Jurong Rd (SAFTI).
194 - Tuas Ter - Joo Koon Int (Loop) -
Renumbered from Svc 254 (And for this case the current 194 can be
renumbered as Parks 407 instead) and converted into normal trunk
Svc - Cuts off the parts between Boon Lay Int and Pioneer Rd
(Before Benoi Rd) and instead of going back to Tuas Basin Link
after Tuas Ave 11, it proceeds to Pioneer Rd, Tuas West Drive and
Tuas Terminal. And return trip via Tuas Ter, Tuas West Dr, Pioneer
Rd, Tuas Ave 11, Ave 20, Tuas Cres and proceeding to Joo Koon Int
via the existing route.
251 - Joo Koon - Benoi Rd (Loop) - To ply
Lok Yang (Replaces 192) before proceeding to Pioneer
Rd. Cuts off the sectors between Boon Lay Int and Jln Ahmad
Ibrahim (before Pioneer Rd)
252 - Joo Koon - Boon Lay Int (Loop) - Routes basically the same
as current.
255 - Joo Koon - Benoi Cres (Loop) - Cuts off the
parts between Boon Lay Int and Benoi which is mostly express sector
and 179 can be the alternative for JW St 63 sector.
257 - Joo Koon - Pioneer Sector (Loop) - Cuts off the sectors
between Boon Lay Int and Jln Ahmad Ibrahim (Before Benoi Rd)
Some new services might be introduced as well.
Suggestions:
164 - Joo Koon - Jurong West St 61/63 (Loop)
Joo Koon Int, Benoi Rd, Pioneer Rd, (Replaces 254), Jln Ahmad
Ibrahim (Replaces 251), Jln Boon Lay (Express), Jurong West Ctrl 3
(Boon Lay MRT), Jurong West St 64, Boon Lay Way (Replaces 254),
Pioneer Rd North, Jurong West Ave 4, Jurong West St 61, St 63
(Pioneer MRT, loop) and returns to Pioneer Rd North.
148 - Joo Koon - Tuas South Extension (Loop)
The service will ply express at Upp Jurong Rd, Jln Ahmad
Ibrahim, Tuas West Dr, Tuas South Ave 1, Ave 3 after Joo Koon
Interchange before proceeding to the Tuas South Extension area.
Don't think that extending Svc 182 to Tuas South Extension is a
good idea as the travelling time for the 'ultra remote' Tuas South
extension area will be longer.
And also since the pair of bus stop outside Jurong Point are
going to demolish when the new interchange began to use, the pair
of bus stops can be moves to outside the new Boon Lay Int and
Jurong West Community Building for Svcs 79 and 164 pax to Boon Lay
Int/MRT/Jurong Point.
Personally I dun think that they are going to extend 502 and 99
to Joo Koon btw. Also I think that those ppl working in Gul,
Pioneer Sector, Lok Yang, Benoi and Tuas etc prefers a direct link
to Joo Koon MRT instead of Boon Lay.