The DNA of all convicted felons is, I believe, the substance of the data base of CODIS.
As I understood it, Ellington stated that he would consider any further evidence presented to him by the Defense team. Part of this 'considering' would be running any unknown DNA through CODIS. This does not mean he will not consider any other information presented to him.
I do not know if DNA kept of people who were sampled for exclusion purposes is entered into CODIS so it may mean that a fresh sample will have to be taken from those whose samples may have degraded since 1993. Did the Defense team eventually get a DNA profile of Hobbs from the State and/or wmpd?
Whilst I am much looking forward to viewing PL3 Purgatory I am not so sure that it is going to be the pivotal point in the next phase of this saga. It is worth remembering that West of Memphis is bankrolled by Sir Peter Jackson who also bankrolled much of the scientific testing for the Defense and, as such, I would think he would have first rights to using any of the results garnered from that, which have not already been made public. Effectively, I would expect his documentary to reveal much of what many were champing at the bit to know, had the evidentiary gone ahead as originally planned. They may hold some back exclusively for Ellington and the State of Arkansas or they may well decide to release it all! Time will tell.