Don't worry too much,Later they will lose 11 svc and they can
definitely improve their WAB status.
For Yishun they have only 171,853,854,855 & 857 to
maintain.
Woodlands they only take care of 169,856,858,963,965,966 &
969.
Sembawang only 167,859/A/B,882,883,980 & 981.
Not to forget that LTA will funded them with another batch of
A95 again and again.
My best bet for the new Seletar operator deployment.
Feeders will be Citaros and B9TLs
850e,851 & 860 Enviro500s and A22s.
852:A22s