I can list what was a sketchy plan and as a bonus I'll even update it for you as to why its cancelled. Lucky for all.
April
Californias Great America
Disneyland California
Cancelled as we can't leave the country
Alternative plan is to visit Paultons for Tornado Springs and a trip to Chessington as the fiancé hasn't been for 12 years.
August
Tivoli Gardens - Denmark
Wonder Island - Russia
Linnanmaki - Finland
Grona Lund - Sweden
Probably all will be cancelled because even if we got on the cruise ship, the chances of the respective ports being open for the ship to disembark from is miniscule. Annoying as we booked it a year ago, just before all this kicked off.
September
Walt Disney World
Univesal Studios
Busch Gardens Tampa
All completely dependant on if we can leave the country and if we can get into the USA.
The usual suspects will probably appear such as Alton Towers, Disneyland Paris and maybe even Thorpe Park after a two year absence. All completely dependant on so many factors.