I remember years ago when Google I/O and Apple’s equivalent felt like the Super Bowl. Now I don’t even know when they are or really care. I miss those days.
1) New build system for Android, because https://xkcd.com/927/
2) Security architectural changes that patch theoretical issues of the 7th dimension, and mess up all existing apps unless the developer rewrites 80% of the codebase
3) Pixel n+1 with more mega-everything (megapixels, megabytes of memory, megahertz per cpu, etc)