1. It'll happen any day now.
2. It's right around the corner.
3. ...in the near future.
4. It will/won't happen in our lifetime. (= in the next 40-50 years)
5. It's a sign/taste of things to come. (= it indicates how things will be in the future)
6. I'm counting down the days until... (= I'm excited about the future event, I can't wait for it to happen)
7. Sooner or later... / It's bound to happen eventually. (= it will definitely happen sometime in the future)
8. I'll get around to it. (= I'll do it sometime in the future, but I don't know exactly when)
9. I'll do it right away. / I'll get right on it. (= I'll do it immediately)
10. Time will tell. (in the future, we will know if something is true/false or good/bad)
#1, #2, and #3 are used to say something will happen soon.

Fact
Scientists have determined that having guilty feelings may actually damage your immune system      .. More >>