Yes. What you seem to be asking for simply does not exist. You cannot experience the content for free, without having the expansion added onto your account, and without any progress you make being saved. For argument sake though, let's assume this was possible and you didn't like what you saw and played. So you revert back to the game as it is now, without having leveled, explored the new zones and dungeons, and worked on your order hall. Nice and "pristine." What are you going to do? Play through the current content all by yourself? Because surely, everyone else has since moved on to the new content. *nod* Hmm... Well, good luck with that.Or I'm wrong?
But wait. The next expansion is announced, tested, and its release is on the horizon. Are you going to demand another playtest from Blizzard for this one? Assume you like what you experience and want to get this expansion. What will you have to do? Oh right, level through Legion's content anyways. Though, even if you don't like the content and decide to keep your account "pristine" as it is right now, you're going to be even further behind with even fewer people to play with. Seems like a great idea.
How about, instead of demanding some sort of service that Blizzard doesn't have and won't offer, you pour your time into watching videos and streams of people actually playing the content to see if it's something you want to experience for yourself. This way, you'll actually have some sort of an informed opinion on the matter, as opposed to your ludicrous requests.
No, just multiple extremely rare boss drops and a mountain of reagents that required extensive work in order to farm.Ya back then they really did not require you to do long legendary quests per character too in order to do content.