I think Skyfall did a good job at being different and more action-packed, but I don't think this is how Bond should be portrayed. Him being a drunkard, failing to save a girl (which wasn't even a Bond girl), failing to save M, losing his physical shape as an agent. This is not very Bond-like at all.
And yet....... Bond was portrayed as a basket-case, a broken man, a failure as an agent, a security risk, hitting the bottle, sorry for himself (for understandable reasons) in the Ian Fleming novel "You Only Live Twice". M sends him on an "impossible mission" - negotiate with the Japanese SIS - which turns into a personal fight for revenge and redemption, at the end of which Bond "dies" - only to return in "The Man With The Golden Gun" as a brainwashed puppet of the Russians, out to assassinate M. None of this sounds "Bond like", yet it was all Fleming's work. And some of those elements can be seen in the film "Skyfall" - including, of course, the obituary of Bond written by M. The text you see M type out, save for the name "Turkey", is almost word-for-word the opening line of the obituary M wrote, which was the penultimate chapter of "You Only Live Twice".