Qatar clearly won all matches and dismantled Iran both in the group round, as well as in the final.
Korea suffered a surprising defeat in their final group match against Bahrain 30:31 (after leading 19:12 at HT)

Then they lost to Qatar after a disappointing start (they were 6:0 and 7:1 down after the first 15 minutes).
Overall they displayed interesting, fast-paced, high technique individual handball, but their defense has to be one of the worse in ages and their team skills are not as good as they used to be. They were then thrashed in the bronze final, -12, again to Bahrain.
Thus, Qatar goes to the OG and Iran and Bahrain to the Olympic Qualification Tournaments.
This has repercussions on the other OQT, meaning that by virtue of their WCh bronze medal, Poland is really close to returning to the OG. If they don't obtain direct qualification from the ECh at homeground in January, they'll be considered World 2 and go in group 1, against World 7, Chile and Africa 2.
Also, this means Slovenia is also now guaranteed at least an OQT, by virtue of their WCh 8th place.
Next up: ECh in Poland and African Championship in Egypt, both of them in January 2016.