Originally Posted by
fruitcage
I guess I’m wondering if they would really deny boarding to someone who missed the new T-20
Depends whether you interpret the displayed information as “the scheduled departure time has been changed to 21:40” or “the departure scheduled for 21:50 is currently estimated to be ready to push at 21:40”. I would go for the second of these, in which case there is no ‘new T-20’ at all.