However, my big confusion is the temple of five was built 4000 yrs prior the creation of the Cylons. If the Final 5 are the priests, then how is it possible they were built that long ago before their race was created? Time travel? Maybe after the first cylon war, the cylon went through some kind of a time travel/wormhole? I know, its far fetch and I have nothing really to base it on.

In reference to the slave uprising part, I think that what is going to happen. That would be the this has happened before, this will happen again. Humanity lived in harmony, but kill each other back on Kobal. The scroll said otherwise, however in the first season, Baltar awaken on Kobal surrounded by bunch of skulls. The virtual 6 said basically it is in humanity's nature to "murder". Baltar then said "everything (the scroll..not sure) said was a lie.) Basically, humanity fought against each other and destroy their gods (creators), left Kobal, settled. They then created the Cylons who revolted, left, and settled somewhere else. Now, the cylons are divided and the "slaves" Centurions are revolting..and so on and on...hence everything has happen and will happen again.

Just my thinking...feel free to critique.