Board Thread:Dark Souls II/@comment-5264386-20130801122019/@comment-11227880-20131028042442

Lordran mightve been nice before, but the Undead who seek refuge are endlessly pursued inside the Walls for sure. Hollow lose all intelligence but a desire to kill. Some Hollows retain their duties from their past life, such as the Soldiers taking up their guard duties. Undead are killed outright, so much so that they turn Hollow. Undead rats, Demons, Loyd's huntsmen, Bosses, Insane Individuals, and thier fellow comrades who have Hollowed. It is miraculous people like Solaire, Seigmeyer and Andre are still  alive, but not surprising that even mighty warriors like Logan and Havel/Havel's Soldier met their ends in such a hostile land.

There is conflicting evidence on both sides, this is simply my input and opinion.