^These two lines have been planned as monorails for the last 10 years. It is good to see that you are finally getting out to see some of what is being built.
Upcoming opening dates are as follows;
1) 4 Dec: BTS Sukhumvit line north ext final section from N17 to N24 (PM official opening ceremony 16 Dec). However, do note that this opening date is subject to final system tests.
2) 16 Dec: BMA Gold Line - ditto on final tests as originally they wanted to open 1 Oct then end of Oct then end of Dec.....
3) March 2021 SRT Dark Red and Light Red lines: limited free trial services for 3 months. Full opening Nov 2021.