Beside svc 21, 22, 72 & 130, I predicts that the other 5 svc
are 24,133, 135 and 2 other unknown svc, but my guess is 25 &
55.
This is my predictions:
svc 21 will via Rangoon Rd, Serangoon Rd, Lavender St, Kallang Rd
towards Pasir Ris, skipping Towner Rd, McNair Rd, Boon Keng Rd
& Lor 1 Geylang. It will via Kallang Rd, Lavender St, Jln
Besar, Kitchener Rd & Serangoon Rd towards St. Michael's.
svc 22 & 24 will turn right into Serangoon Ctrl, Upp Serangoon
Rd, then turn right into Upp Paya Lebar Rd towards Paya
Lebar.
svc 72 will turn into Hougang Ctrl.
svc 130 will via McNair Rd, Towner Rd, Boon Keng Rd, Upp Boon Keng
Rd, Lor 1 Geylang & Kallang Rd towards Shenton Way, skipping
Jln Besar & Ophir Rd. It will via Kallang Rd, Lor 1 Geylang,
Upp Boon Keng Rd, Boon Keng Rd, Bendemeer Rd, Lavender St towards
Ang Mo Kio, skipping Kitchener Rd & Upp Serangoon Rd.
svc 133 & 135 will via Serangoon Ctrl instead of Serangoon Ave
2.
I think that it's a good ideas to divert svc to bring passengers
closer to NEL stations, but if the route becomes longer as a result
or other passengers suffered inconveniences, then it's better to
remain in the current route.