Last I heard, this "Jodi Arias was testifying" came about when a person accidentally opened the courtroom door and saw her. Has there been any new information regarding how she came to be seen either at the podium or on the stand?
If that is still the prevailing story, I am going back to the secret witness being Alyce LaV. If JA was seen speaking to the jury, she could have been giving her allocution in private as long as the opportunity to do so was available. IOW, her being on the stand or at the podium does not necessarily mean there is or was no other witness demanding to testify under the cloak of secrecy. And for me, the person who would least want to be there but who the DT would most want to be there, is someone who is deemed an expert in their field and who can possibly give JA's lies some substance.
JM would dismantle such testimony but he did that last time very skillfully, yet we came away with a juror who believed TA could have been abusive. And remember, there was absolutely NO documentation of TA abuse; it was claimed by Jodi alone, and backed up by her experts who had never met TA.