Will my EtG be positive today at 2:00 pm?

Possibly.

There is a high probability that you will test positive. Is this test for work? Probation? What do you stand to lose if you fail it?

Not much time there, depends on % alc and amount of wine but don't be surprised if you fail..

Did you know about the test when you drank it or are they finally wising up and giving short notice tests?