I don't believe that nobody had paid attention to the small detail in the last episode. I searched but I coud not find any blog about that detail.
And the detail is that Sayyid took and put on Horace's overall.
I believe in the second season when Hurley (or somebody else-i do not remember) first time finds a blue car he finds inside body on whose overall was label Horace written on it.
So does it mean that the body belonged to Sayyid?! So Sayyid is doomed and won't recover from his wounds?