So now the latest cinematics have been out, I'm pretty sure that there will be a patch 5.5.
In 5.5 the trial of Garrosh will find place, and cleaning up the mess of the Siege and Pandaria.
Putting Garrosh's trial in the next expansion wouldn't make sense, so that wouldn't do it.
It's to late to do it in 5.4 since everything is added already.
Garrosh is also to big to just forget, and to big to do in a scenario.
Unless blizzard makes a world event of Garrosh's trial, I assume we will have a 5.5
Someone else has any other idea?