I wouldn't fret about it too much, unless you've booked the ticket in order to arrive there for a vital event, be that a business meeting, a bamitvah or the christening of the family rabbit or something as trivial as ground staff not turning up for work
If BA has changed its timetable and you are ticketed to travel that itin, travel it you will. Just don't count on the timings you'd originally envisaged being met.
Hope your trip turns out to be less eventful - for all the right reasons - than some of the posts I've read on here over the last few days.