I also (hope) that because of the new SM, Necron, and Ork flyers that all "planes" (Stormraven and the IG flyer included) will get a flying rule much like in megabattles. Having them as skimmers just doesnt make sence, eldar jetbikes skim around the battlefield, planes fly. Of course having a flying rule means that if it is shot down, it would be like a tank blowing up, having the area it took up be diffucult terrain and every model in reach taking some sort of damage. But one can only hope.