Since we are now a couple weeks after release, I will just spoil the new questlines for those who want to know. Kenneth Haight, Nepehli Loux and Gatekeeper Gostoc's quests all converge together. Go back to Kenneth Haight (all NPC's are now marked on your map, YAY), in East Limgrave. Talk to him, he will teleport back to his fort in the south. There will be some Demihumans of low level there. Just clear them and ascend to the ramparts, and you will find him again there. He tells you he is not worth of ascending you to knighthood (whatever that may mean) and he needs to find a new ruler for Limgrave who is not Godrick. After killing Godrick, Gatekeeper Gostoc will move to the room where you fight him, and stamp on his remains. Go to Roundtable after doing all of Nepheli's questline (Godrick + Village of the Albinaurics), and don't give her Seluvis's potion. Instead give her the Stormhawk Ashes you get from the tutorial area that you can go back to using the Four Belfries. Exhaust dialogue, teleport back to Godrick room. Rest at the Grace there to reset the area. All three NPC's will now move into Godrick's throne room. Exhaust Nepehli's dialogue and she will give you an Ancient Dragon Smithing Stone. Kenneth Haight doesn't seem to do anything else. He says he will go back to his fort, but he just sticks around. Gostoc is now in the back of the room as a merchant again. He will have another Ancient Dragon Smithing Stone for sale for 20k.
Diallos's questline picks up in Jarburg, working on that one now.