Just to clear things up. When i say that his game is "simple", i mean that it isn't as complex as a TES game should be. Some people talks about the "dumbing-down" of the TES series.
What i'm worried about is that when you read the events of the second era wich appears in TESO, there is a huge amount of History and complex events that i fear that get killed just for the sake of the stupid gameplay or get sacrificed so more fans and cassual gamers play TESO.
Still not being clear about what it means to be simple. ESO will have all the usual Lore things that all the rest of the TES games have. Ruins/temples/shrines to find, interesting NPC's, books and the whole of Tamriel.
As far as the events of this era they know all thats happened as well, they're not talking events out, they are simply adding ESO into a time slot where there is no major event going on, just a time of chaos and uncertainty, paraphrasing of course as again you should do some research and see what the devs have to say. Get the info from the source and make your own conclusions and not those of others who do nothing but bash ZOS and think they own the Lore. Look this isn't just some random company making the game and got permission to use the lore. ZOS is part of the same company as Bethesda, the studios are literally a commute away from each other, they are in a collaboration and the makers of the Lore are always in charge of it.