TPG LTE signal is available on Thomson East Coast Line 3 undeground Woodlands stations

Yesterday, the first three stations of the Thomson East coast line was opened for preview.

The good news is, the 3 new stations which will be officially operational on 31 Jan 2020 is TPG ready.

Users with the free trial SIM will be able to surf and makes calls in the underground line.

TPG has announced that it has plans to launch their price plans soon. Does that imply that we should be having signal coverage in the older lines real soon ?

When would you think TPG is ready to cover all the underground stations and lines ? Discuss.