One of the futuristic concepts which might be implied by vision of singularity is the concept of “resurrection”. This concept was discussed in various religious communities. But till now, it gets limited attention from science. I wonder that, resent developments in genetics, forensics science, computer simulation and cosmology can bring some attention to this problem from Transhumanist community.
It might be possible that genetic engineering and cloning will provide a way to bring back extinct organisms. Virtual Reality, Simulation of Past Historical Events and large scale geo-ecological simulations (like Earth Simulator from Japan - http://www.earthsimulator.org.uk/) can provide an environment to reconstruct the past historical events.
Thus, we might be able at some point have enough knowledge to perform complete reconstruction of real historical personages.
Also, It might reflect some resent work in cosmology by Stephen Hawking, Leonard Susskind and Frank J. Tipler suggest that information can not be lost in universe and universe it-self evolve toward the state (omega-point) where resurrection might occur.