What I meant about E8 is that Echostar wants to move it to another slot where they were supposed to build a new satellite. FCC said no, an old satellite is not as good as a new satellite (i.e. Dish needs to build a satellite if they want the slot).
Use of slot (86.5W) has been revoked for failure to perform per the license. This threw the 86.5W slot back into an old lawsuit where applications have been frozen (for 10 years or so) waiting for new rules.
E8 at 77W has a checkered history with them first saying they would likely move it to 148W when Quetzsat launched and next asking to move to 86.5W and the latest approved (but not moved) request to move it a couple tenths of a degree at 77W and maintain it as spare capacity.
The only pending approval at 77W is for Dish US earth stations (home receivers) use of Quetzsat. Echostar has a Quetzsat license for home receivers in the US.
I'd guess they are deep into a deal and the silence has to do either with competitive moves either in Mexico or Brazil or as leverage for licenses either in Mexico (where Slim wants to get involved but is presenty barred from TV) or Brazil (where Echostar/Hughes was awarded 2 new licenses that are being contested). I can imagine them telling two sets of regulators " you want it, it's sitting there ready to go but if you jack us around we will go to the other market" (Brazil or Mexico).