Steve, that is always the 800 lb gorilla, isn’t it? We all ask and ponder over that question. I will tell you that Baha’u’llah, The Bab and Abdu’l-Baha have revealed more about the next world than God has ever allowed to be revealed before. The exact nature of the next world is withheld from us because 1. There is no language to describe it, and 2. We would want out of here, pronto! It is all available on the net if you’d like to explore for yourself.
A lot of analogy is made of the child in the womb where it is not apparent why all the activity is taking place, but is VERY apparent after birth. In the womb we had no choice but to grow, while in this world (in essence a spiritual womb) we have free will to either grown spiritual eyes, ear, arms and legs, or not. Birth into the next world will reveal how those spiritual faculties will be put to use.
In the next life, we will deepen in love and the understanding of God and reality forever. There will always be a point ahead and more to gain (just as there is no ‘largest’ number because you can always + 1). God is so exalted that even in an eternity of learning we will never fully understand God.
So, I see the next world as the start of an eternal, vibrant and unimaginably blissful journey of experiences, knowledge and service.