I think it'd be neat to see a new security token released alongside each new expansion. My original security token from the days of ARR ended up dying for some reason, but luckily I had the Shadowbringers token ready to replace it with.

As for the phone app, I generally don't like using my phone for anything other than phone calls or checking a map if I need to find somewhere specific when out and about. So more options to account for different lifestyles would be pretty neat.