tell that to the Starks , speccially Robb ! Book fans know what i mean ! ;D

yeah , but dont worry they will alter the hobbit more like they did with the council of elrond , galandriel and saruman which doesnt take place at the same time . or the Radagast information for gandalf, he already knew what is there in Dol guldur, he had found Thorins Dad in the cells there and thats how he got the key and the map.
anyways i guess they will add legolas as a bonus while the dwarves will be in the mirkwood

you have no idea what you are talking about , Aragorn is near 90 years old in the lord of the rings ,since he is a Dunedain with kings blood from the ancient Kingdom of Numenor , he exists when the events of The hobbit occur but he is not involved in them. He is not in the book but if i remember correctly from other sources , at that time he is already a great Warrior helping the elves of Rivendell ( he was raised in Rivendell after his mother send him there ) and going on missions with the sons of Elrond.