Of course I would love to see more.
I want to know more about the Haradrim, the Variags, the Khandish men, the Easterlings, the peoples of Aman, and the lifestyles of the orcs of Mordor.
I wish I could have seen in more detail the City of the Corsairs, Dol Amroth, Pelargir, the inside of Barad Dur, the inside of Minas Morgul, and the great strongholds and sights of Aman and the rest of Arda.
There was so much left unexplained...