I was waiting for it too but now that I got used to S Health and the new changes and stuff they added, they have now Blood Pressure Monitoring, SpO2, Stress and Water Intake, I think I'll keep S Health for now.
My Asus Zenwatch doesn't sync to S Health but at least the phone is capturing my steps, only thing missing is that I used MapMyRun for my Running workouts but for now doing the Insanity Workouts (Yes, for the 4th time in 3 years) I don't think I'll need it for a while, then I saw that Samsung has Nike as an S Health Partner and the app looks good, may try it when I'm ready to go back to running.
Thanks.