The meaning of parousia depends on the context. "Arrival" and "coming" are definitely within the semantic scope of the word. The difference between these and "presence" is that the former signify changes in a state (i.e. becoming present), whereas the latter indicates a state (the state of being present). Context shows whether this state is a change from an earlier state (i.e. being absent) or not. The intimation that parousia could not mean "arrival" or "coming" is not correct.
In NT eschatological usage, it is clear that a change in state is implied. For example, a state alone is durative and not a distinct "moment", whereas a change of state is punctual and could be described as a discrete event. Such is the case in the synoptic eschatological discourse, which emphasizes the suddenness of this event.