On some level, I feel like Snowden has to explore the option to return, if only to make clear his long-stated desire to do so, look for avenues to negotiate, and keep his supporters engaged.
I am very doubtful, however, that he will be treated fairly given that he committed the unpardonable crime of embarrassing the U.S. government. Obama is clearly petty and pig-headed enough to resist any cries for justice. His mind is made up about a lot of things, this just being one.
If I were him, though, I'd have to be very nervous anxious about being the guest of such a calculating thug during a time of such geopolitical aggression and uncertainty. I mean Vlad could just order him killed by unknown assailants and then blame the U.S. for the purposes of some minor PR points. He's that kind of guy.
Dear Edward Snowden. There has been one person telling the truth and that has been you. You have lost pretty much everything and gained nothing. I hope the day comes when you can walk the streets of our misguided country as a free man. Thank you.