I believe Korean must block forward part of cabins for Elites. I phoned this morning (30 days out) to obtain seats for ATL-ICN-DXB flights and was offered seats in rear of Business cabin for myself and traveling companion. Agent insisted there were no seats available in forward of cabin, even though Expertflyer showed availability (I phoned twice, got same agent and same answer twice). Your posting prompted me to phone Korean again this evening, explan to agent that we were both Delta Diamond, so therefore Skyteam Elite Plus and low and behold, we were moved to my requested seats in the forward cabin of Business Class.
Thank you for your posting.