I've had a look through the ACL report for winter 2020/2021, compared the slots granted (not just requested) and looked for route changes that have not been already announced. I must emphasise that this is based on slots granted - airlines can and sometimes do decline to take up routes, so this is only a "what might happen", not a "what wll happen". In a normal year, many of these routes would have been announced by now; I'm guessing a sizeable number of them simply won't happen:
Eurowings:
Salzburg cancelled
LOT:
1x daily E190 to Budapest
Turkish:
New routes to Ankara and both Istanbul airports
TUS:
1x daily to Larnaca
https://www.acl-uk.org/wp-content/up...TN-W20-ICR.pdf