I've logged in after patch on ps4 EU and I had a notification that I need to reset my skill points. After going to my skills tab I noticed that I haven't been refunded my skill points that had been taken away!!
I think I have lost more than racial passives though. I've lost Dark Brotherhood/Thieves Guild passives which I KNOW I had bought because of the event but now I have no points left to allocate after buying racial passives. I've also lost destro and resto passives but I'm not 100% sure I had them all before. Wish I took a screenshot pre patch.