It's still showing on MDE, albeit deactivated. For my stay next year, will I get a new Magic Band or do I need to bring my old one?
you will get a new one
you can bring your old one (you'll need to activate it, just click on it and activate) but you can also leave it at home
the main benefit of bringing the old one (if you activate it) is that you'll be able to receive a room ready notification (if you do online check in) and this will give you the option to receive your room number by text and proceed straight to your room, but if you have to pick up tickets, you'll have to go to the lobby anyway
I ask because MDE is not showing me any option of having a new Magic Band, although it's told me it can ship my tickets to my hotel.
you said that you haven't linked your stay yet.
you only get a magic band with a hotel stay. So as soon as you link your hotel ressie, you'll get the magic band customisation option on MDX (you'll need to enter your UK adress to access that option)
When it gets closer your MDE will show an option to customize your magic bands.
OP didn't link the ressie yet. The option will show up as soon as the hotel reservation is linked
it will not show unless the hotel ressie is linked.
Have your old one with you at check in so that your room can be linked to it.
this is useless.
rooms are not linked to a magic band.
Rooms are linked to the MDX account, and Magic Bands are also linked to the MDX account
any Magic Band that's present and active on someone's MDX account can and will open the door of the current hotel room on the guest's MDX account.
there is no need to link a Magic Band to a room
(as said above, you can even use an old MB to bypass check in at the hotel if you've done online check in, and go directly to your room, no need to "link" an old MB to a room)
you can have 10 MBs on your MDX account, as long as they're active (option in magic bands and cards) they will all access the room reservation and open the doors.
nothing is stored on a magic band, the only thing it does is access the information on your MDX account.
As long as it shows on your MDX account, it can access anything on that account (tickets, dining, fp+, rooms, you name it)