It is a recent addition to the English language. If you are dealing with traditionalists it might be wiser to use forthcoming.
Yes. If it means that it is a planned show that is about to happen, then the term "upcoming show" is correct.
Upcoming is an adjective.
upcoming
The word "upcoming" is somewhat self explanatory. Upcoming means coming up, forthcoming, about to take place, or occurring soon. It is often used to describe events that are going to take place in the future.
Synonyms for the word upcoming: approaching, forthcoming, future, imminent, impending, looming, nearing, next
Yes, since 1943.
impending
upcoming
You can say either "excited to" or "excited about" an upcoming event, as both are commonly used and grammatically correct. It just depends on your personal preference.
No, "uncomplete" is not a correct word. The correct term is "incomplete."
Another word for imminent is impending but you can't make an adverb out of it.
Yes, it is okay to do so. Usually, there is a comma after it. EX: Then, John entered through the door.