I would like it to have something like the wrathgate questchain where you are awarded by an ingame cinematic and maybe some phasing magic thrown into it. 

For the longest time now I want to see the bosses of end game raids but I just can't stomach the raiding end game. I don't need loot and I don't need the achievements, I just want to see the fights and little story tidbits that are only available when facing the boss. I don't want to be forced to watch the crappy videos on youtube with comments in whatever language and awful music that always goes with something like that.

So what i was thinking about is some kind of optional quest chain with minor rewards, maybe reputation, or pet or something other non loot oriented, but with good lore payoff.

Those that want loot and recognition should be free to seek it, but all I want is to see what happened when they did it. I don't literally mean that i want to watch them do it, but some NPCs would be enough where my model could be used in a cinematic, or I could be far back in a phasing scenario but be able to experience it passively.

So, what do you think, is anyone else interested in something like this?