1 - I don’t know of any plans to return to A330 ops any time soon. I don’t know about the status of any agreement, but I wouldn’t expect to see any A330’s operating in 2021 or 2022.
2 - The 757’s are planned to be used this summer, but that is obviously dependent on what Boris says on Monday, and on demand. They will come back in time to start operating I assume. As far as we know the 757’s will continue in the fleet till 2024, and maybe even 2025 now that they haven’t really flown much this last 15-18 months.
3 - The 733’s are also planned to be used this summer with the same proviso as above.