Just pointing this out: the fact Garrosh states the prince is dead does not necessarily mean he is; it simply implies he believes he saw the prince die. Something could very well happen to Anduin that gives Garrosh reason to believe he is dead, while in fact he saw wrong / Anduin was only wounded / etc.

So the "'at least the Human Prince is dead" might perfectly well be intended to be final without implying any premature death for Mr Wrynn Jr.

Except, in that case Sylvanas did try to plague 'all the things', she just had plausible deniability and a convenient fall guy to take the blame.

That doesn't mean your point of 'wait and see' is inaccurate.

One could think that, although the recently released soundfiles of Jaina includes her saying "Anduin...is dead?".

Now granted it could be a case of "reports of my death have been greatly exaggerated", but whether he is actually dead or perceived to be dead, and end result to his family and friends will be the same. It makes sense from the perspective of Blizzard saying war between the horde+alliance will be the prime focal point (at least early on). Anduin dying (or thought to be dead) would drive Varian into a complete rage. Even if he retains his more balanced perspective that he obtained as of late, he will be gunning for Garrosh, which means any horde in his way are fair game.

Regardless, I don't think he will stay dead. But it does create for an interesting scenario. Wraithion will be involved in some way I'm sure. If he does get resurrected, I wonder if there will be a cost? For instance, he basically becomes some avatar of light, but he has to stay in Pandaria forever as a guardian against the Sha.

Only semi-facetiously: he needs excuses to go into a complete rage? I don't read the books/comics/etc, so please forgive me any information I'm likely missing, I'm of the (mistaken) opinion that we should be able to understand everything game-related just by playing (external sources being polish and addition, not puzzle pieces missing from the middle of the picture). To what 'balanced perspective that he obtained as of late' are you referring? In-game all I ever see are 'Emo rage', 'not talking, so just assume I'm angry, you're probably right, and 'things are going my way at the moment' with nothing inbetween. Any quest interaction has been 'Angry, go kill/do X for me', and between quests it's 'go away, I'm busy' brushoff text. Again, I wouldn't be surprised if the books portray him as a more balanced and rounded individual, I just have not seen any such progression in game.

Just think to the MoP cinematic. Yes, he's a concerned father, good for him, but he doesn't seem to care that he lost most of a fleet of ships and all the brave sailors on them. He's a king. He can't put even his family legacy before the nation. That's the responsibility of the job, ignoring it puts him on the level of countless petty dictators (interested in the power/wealth aspect, screw the populace) - not something that portrays a balanced perspective.

As to resurrection - it's a mechanic that breaks lore for us (and most NPCs) for gameplay reasons, but for named NPCs that die as part of an organized event (as opposed to walking loot bags of all persuasion), death is supposedly non-recoverable. Open that door even once and it swings wide enough to let trucks drive through past/present/future plot holes about why important/powerful individuals are still dead.

I'm surprised no one has put forward one possibility:
The soundfiles are all part of a possible future. One of those 'if you don't take action, this could happen' spirit visions our characters seem to enjoy (or maybe we just like the drugs). If we don't do X (take down Garrosh?), Anduin will die, Garrosh will gloat, Jaina will be sad, etc.

Well Varian (ingame) did let Saurfang grab his son's body and gave his respects.

Getting back to the game again, the Vol'jin model update (and the fact there is a book about him) more or less cements the fact he will probably be the next warchief after we get rid of Garrosh. The question I have, though, is although the Horde has a warchief, usually each race has it's own leader. Most of the warchiefs have been orcs, so the fact a troll may now be warchief makes ones wonder who the orcs will appoint as their leader?

It's pretty clear Thrall won't come back to lead them (otherwise everyone, including Vol'jin, would probably let him take the mantle). The only clear replacement I see (for a mix of leadership + battle prowess) would be Saurfang.

Despite his age Eitrigg probably is up there in choices.

Meanwhile, MMO Champion has datamined some interesting dialogues.

There's two distinct parts that segue into each other, the demonic bits that harken back to the BC storylines, and the power that the Mogu want to use. Interesting info about non-legion demons...

Well, maybe they just like Song of Ice and Fire

As for Vol'jin, there is a datamined quest where he, badly wounded and poisoned ask player to search for Thrall and liberate Echo isles from Kor'kron occupation.

That was a known fact (demons as magic-eating junkies) for a long time. That was the original motivator for the Legion in fact : invade worlds to devour their magic.

Well, that, and the whole 'eradicate all life and destroy the order created by the Titans'. But yeah, the om nom nomming of magic certainly helps. Speaking of which, I wonder how many expansions we'll go through before we finally see Sargeras in all his glory?

MMO Champ posted some more dialogue from 5.1. The Varian bits are interesting. Some of the dialogue makes it unclear if Anduin is dead or just really badly hurt (He requests Velen get there ASAP). He also scolds Jaina for screwing up his plans on getting the Blood Elves to rejoin the Alliance after her stunt in Dalaran.