I think there are a lot of serious overreactions going on here thinking his career is over, etc.
If we have learned anything about how the NFL treats players, we know that while they are certainly quick and stern in handing down punishments, everyone gets a 2nd (and 3rd) chance.
Plaxico went to jail for 2 years and came back in his mid 30s and had a relevant fantasy stint.
Vick went to jail for two years and came back.
You know how it is with these NFL players with money and the ability to plead down a charge. Unless they reveal that he heineously murdered someone in cold blood, the absolute most he will ever get is a three year sentence that is watered down to two and then a 25, 26 year old Hernandez will be allowed right back into the NFL.
But that is putting the cart ahead of the horse. It could very well end up that Hernandez walks out of this with nothing.
If I own him, I don't trade. If I don't own him, I probably observe his owner to guage his feelings and I buy because at this time the owner willing to sell can't ask for the moon so you are liking getting the lowest price you can imagine and if that price is liveable with you to say "Worst case scenario, I just gave this way for nothing" then you can only win long-term.