User blog comment:StormWarriors2/The Widow Systems/@comment-3053446-20150206185451/@comment-3053446-20150206200529

Solitude. There is no lore what so ever. But this map (http://vignette1.wikia.nocookie.net/warhammer40k/images/c/c2/Knight_Worlds_Map.jpg/revision/latest?cb=20140302093752)

Shows it still exists. It doesn't list it as destroyed. Nor does it mention it. Also we have chapters that have crusaded in it before. To me that just leaves it open. it doesn't in any of the lore say all human planets or most. It says many. It is left up to intrepretation. I mean its a great area to have this exploration of new and wierd xenos races. Such as the Thexian Elite.