Small Weather complication showing BOTH the current conditions and temperature, rather than having to use two separate complications for each. I think it even used to be that way several major versions ago - I want this back!
Ability to edit workouts directly from the iPhone - something that has been discussed multiple times in a runners’ thread in these forums… This feature would allow much easier/faster building and editing of custom workouts as well as cleaning up of the old/obsolete ones.
Also, more detailed and flexible options for the workouts. Such as - more granular setup for running pace, currently you can only go by 10s steps, but that’s painfully clumsy, I mostly have to set a wider or narrower pace range instead of what I actually want to achieve. Or, ability to change the notifications during a workout - for example, switch from Actual to Rolling pace notifications anytime without having to end the workout and start a new one. Also, the notifications should be more customisable - I’d like to be able to e.g. combine actual and average pace, hear how much I’m ahead or behind the goal time when running with a pacer, and such.
Also, independent Sleep mode - not just mirroring the iPhone - so that the Watch can be e.g. asleep but the paired iPhone can stay in a regular mode (there are some workarounds such as using the airplane mode on the Watch, but that’s too cumbersome and not really usable on a daily basis).