At this point the vision becomes apocalyptic, and describes events which are yet in our own future. It is a reflection of all other scriptures discussing the events of the last days. The "wars and rumors of wars" language clearly reflects the images of those parallel verses.
The New Testament examples are:
6 And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all [these things] must come to pass, but the end is not yet.
And
7 And when ye shall hear of wars and rumours of wars, be ye not troubled: for [such things] must needs be; but the end [shall] not [be] yet.
The theme is more frequent in modern revelation.