As codex overwrites rulebook, and that WD article IS effectively the Stormtalons codex, then yeah it get's hover strike. It is worth checking the FAQ though as the Ork flyers from the same article were altered in the FAQ - mainly it was taking away the rule that made them bloody fast and giving them the flyer rule instead, so was only bringing them in line with 6th ed, but worth checking the Storm Talon FAQ just in case.
Speaking of flyers, there is rumoured to be a GW flyer compendium on the way. It will include updated rules for all flyers, including the WD ones, plus the Burning Skies rules we have in our Crusade of Fire book and some other scenarios. We already have some scenarios in Imperial Armour Aeronautica, I am not sure if these will be reprints of those in a GW publication as opposed to FW or whether it will be entirely new. Dependant on price, I was wondering if there was any interest in picking up a club copy of this when it comes out?