Unpublish Apps and Republish them later?

I know its possible to unpublish the app and republish later but I am wondering If i release a new update after a few days and republish my app again.

Will this send existing users a update or google play will simply ignore them?

I am waiting for widdit to release the new SDK and i dont want to push another update now and then do another update after a week.

Might as well keep the push ads revenue going while we can. What do you think?

You can do it. When you unpublished, it’s simple hide your app with user

Thanks. It’s probably better strategy for now rather than releasing another update later. Airpush, widdit and many SDKs are still buggy.