One of the biggest annoyances I find with the Apple Watch is that despite being billed as a 'smart watch', it's often not very smart at all. Take for example complications (widgets that go on the watch-face). Currently you have to manually choose what goes where, like so:
This one shows that I have just over 2 minutes remaining on that timer (very useful when cooking, or when you've paid for park for a fixed amount of time):
I could also configure it to show the remaining battery percentage, my favourite stock price, sunset time or various other tidbits of information. So what's the problem? The problem is i need to configure it every time. It's not just a case of setting a timer, and the watch automatically replacing the weather with the timer, I have to manually edit the settings each time (unless I save a different watch-face with each combination, in which case finding the right one would take just as long).
Instead I should be able to say 'show me one of these things, depending on what's happening'. So if I've set a timer, show that. If it's going to rain, show the weather. If my battery is low, show the percentage. This would be a really cool addition in my view, and as far as I know it's not been announced for watchOS 2.