Hvem går der, ven eller fjend?
Also possible: "Who is going to appear there?"
still not accepted 1/8/16
Could this, in US english, be used to mean "who will be there"? Like asking what notable people will be there?
"who comes there? " is a common expression by giants and ghosts
I figured for sure the English idiom, "who goes there," would work. It doesn't. Sign if you thought so too.
not accepted? "who show up there?"
"Show up" is more like "arrive", at least in everyday conversation.
Also, "who" is usually singular. Usually.