I’m the curmudgeon on this. They will likely introduce nothing that will be of any real interest to the vast majority of users. More likely a bunch of pointless features hardly anyone will use. Add in that many people can barely use the basic functions they already have.
Making calls, email, messaging, camera, storing photos, access internet, maybe some games, shopping and maybe banking apps, some music playing and maybe airdrop. For many if not most the rest is unnecessary complication—a million things they will never use.