Get used to seeing magnetic accessories
MagSafe is surely now the most well-known of Apple's use of magnets, but it isn't the only one -- and it appears it's going to be joined by many more. Just as the Apple Watch Milanese loop depends on a magnet to fasten, so Apple has investigated magnetic clasps for cases, and other bands.
"Attachment Apparatuses and Associated Methods of Use and Manufacture," is a newly-revealed patent application which actually builds on a previous patent that was granted back in 2015. They are both concerned with ways of incorporating magnets into various materials, and how those can then secure devices.