
γεια σου bhogus, according to the Oxford G. Learners' Dictionary προκείται means "to be about to/to be going to/ to intend to"
Προκείται να βρέξει - it's going to rain
Προκείται να μας επισκεφθούν την Κύριακή - they are to visit us Sunday/they'regoing to visit us Sunday/they intend to visit us Sunday
Επρόκειται να τον δει χθες - He was to have seen him yesterday/he intended to see him yesterday
προκείται για = it is about/it concerns
Για ποιον προκείται; - who's it about?
γεια, Άιριν