In Florida rarely do I ever see LE come out publicly and rule anyone out by name. What they usually do from the many cases I have seen is say publicly they have ruled no one out or they don't have a POI and then when they make an arrest of course by default everyone else is ruled out then but the arrested suspect/s. In Jessica Lunsford's case in Florida and also in 12 year old Carlie Bruchia's kidnapping/rape, and murder they didn't rule anyone out those times either.
Most all LE does the same across the country. I can count maybe three or four cases... if that.... where LE came out in the media and ruled a parent/s out specifically by name. Off the top of my head I can remember them ruling Jessica Ridgeway's mom, and dad out a few days after she went missing, but its a rarity rather than the norm.
So I don't expect they will do it in this case...well not publicly anyway. Behind the scene is another matter, and people will be ruled out that is on the potential suspect list.
I have a feeling this is someone living in that very same trailer park. Someone who may have pretended to befriend this family and gain their trust and Diana's trust also. Since LE has concentrated on the trailer park from the very beginning I think they too think its someone in that area.
I hope they search underneath all of the mobile homes closely. Even if they have skirting all around the homes whoever did this could have hidden her underneath one of the homes and then put the skirting panels back up. There are also large circular heating/air connections underneath the mobile homes where it could be taken apart and a small child's body stuffed up inside of them. Although the kidnapper could be like Melissa Huckaby and may have taken her from the mobile home park to another area. I haven't seen any mention of cameras at this MHP like they had where Sandra lived when she was taken.
Do you know if there is water close to the trailer park where Diana went missing? A lot of these abducted children seem to be found in ponds/creeks/lakes etc.

I am praying for a miracle hoping Diana will be found safe and returned to her family like Carlie Trent. However; those endings don't happen very often for an abducted child, and as each day passes it doesn't bode well for little Diana. I even thought about a sex trafficker since that is happening in our country way more than we want to believe.
IMO