[cobralibre]

You're confusing up-and-coming, meaning "showing promise", with upcoming, meaning "forthcoming".

[lloeki]

Thanks, I'm not a native english speaker so I misunderstood the idiomatic expression's true meaning.

[eblume]

To be fair, that is a particularly idiotic idiom.

[statictype]

Your understanding was correct. I think the phrase 'rising' would have been a better choice for what the parent comment meant.