So I booked BA286 sometime in May through an Avios redemption booking.

I was alarmed to learn that for some inexplicable reason, BA is operating an A380 on both BA285/4 and BA287/6 for a short period this spring 2025. I was expecting a 77W, and wanted one after the massive unreliability of the A380 fleet off late.

I have a couple of questions:

1) Is there a site where one can stay updated about BA's fleet changes in more than 'opportunistically finding relevant news articles' - as in actually search over a date range, what equipment is scheduled to fly a particular route. I could not find this in ExpertFlyer - you have to specify a particulate date, not a range.
2) If my flight was to get cancelled, and since I used Avios, would I still get the ability to book any A/F fare seat going from SFO -> LHR that is free ?

Many thanks,