If withdrawing the appeal was clearly in the best interests of GT at this time, then the GTAA would surely have done it by now. It may be a simple matter of the GTAA giving every last second for the NCAA to come out with a decision one way or the other. There is no moratorium on the two sides communicating with each other. There could be an information flow going on. If there is a deadline for a withdraw of all or part of the appeal, there is no reason to announce a decision before the deadline.
The AJC article about Zelnak talking lawsuit is certainly an indication that there is maneuvering going on. If Stansbury generates evidence that suggests that a lawsuit will have some traction, then he has my blessings. The NCAA needs to be called on their favoritism and sticking it to smaller programs. I can live with those risks to see the NCAA called to the mat.
Otherwise, the situation is not complicated and it a decision hasn't been announced it is because there is no need to make a decision at this time. Just like the Bengals could announce who they will select with the first pick of the NFL draft at any time, but there is no need to do so at this time. Some new info could come to light.