1. After the tickets expire, they’ll disappear from your
MDE, although Disney will be able to see them. So it’s a good idea to keep a record of the ticket numbers if you don’t modify them now. Some people have reported being able to modify tickets via MDE (might be website rather than app), but others have had to call. If there’s a Modify button next to the tickets in MDE, and if you know the dates you plan to use them, it might be easier to do now, but if you don’t know the new dates yet, you can wait.
2. I have no idea whether
Genie+ might affect this or not.



For whatever you decide to do.