Perhaps they've already been exposed. I'm talking about the House of Horrors revealed in all it's horror in 2008. There is every possibly that there is a connection here. Trudy Quinlivan, who is now on the run, was part of that family. This was briefly discussed back in an earlier thread and I still believe it possible that there could be a connection to this case.
http://www.adelaidenow.com.au/news/...7-to-authorities/story-e6frea83-1226654327658
http://www.adelaidenow.com.au/news/...t-to-stand-trial/story-e6frea83-1226077069252
https://www.facebook.com/victoriapo...d=853928664679271&offset= 0&total_comments=26
http://www.abc.net.au/news/2015-03-20/woman-charged-over-sa-child-neglect-wanted-on-warrant/6335552
Trudy Quinlivan could certainly fit in with the Wynarka case IMO. She disappeared in April of this year and the suitcase was found in July. So where is Trudy? Someone is obviously hiding and helping here. I don't think she could survive on her own. I have found no mention of her arrest between April and time of writing.
Trudy had given birth to three children from memory. Perhaps Trudy gave birth to a fourth child. A daughter who was badly beaten (not necessarily by Trudy) and died. The people living in that house would not have reported the death of a child or even sought medical help IMO. So what to do? Wrap the body up and secret it somewhere on the property. The child may have not been Trudy's daughter but one of the other 21 (or more) kids living in that house. Maybe it was a child that Trudy cared about and she has clung onto the remains ever since. Scooping up clothing, not necessarily all belonging to the deceased little girl, and stuffing them into an old suitcase, along with the remains of the little girl. Some of the clothing may have belonged to some of the other children, both boys and girls.
I have no idea how and why little Angel ended up where she was found but one thought is that Trudy has made her way to the Mallee area, is hiding out in one of the bush camps and has either dumped the suitcase herself or someone who is hiding her has done so.
I'm happy for everyone to poke holes in this theory but I feel it needs to be discussed further.