I too am excited as well as nervous. This could be great, or it they could go overboard on the "Grittiness".
Mourning the wife doesn't bother me just from this description, that could just be an added drama, or they could do a good job with that change. I'll give it a shot and hope for the best, even if it isn't true to the original, it could still be a good show on it's own accord, but, there is so much that could go wrong with it
And I think, even worse than getting it horribly wrong, might be for me to love it, and have it crash in the ratings and get cut off before it reaches it's potential