To be honest with everyone, I don't miss Hernandez at all. Sure he was a big body with a great look, and could do some interesting things in the ring, but he never made me care about him.
Hernandez has the personality of a doorknob. He was a shitty interview and had awful mic skills. He was even worse when speaking the broken Spanish that he knows. So according to wikipedia, he is in Mexico and working for AAA. Let him stay there. He is doing an anti-mexican gimmick and seems to be getting him some heat.
The whole point of TNA sending him down there was so he could develop and build a character. An anti-mexican character is not going to work in the United States, because really, a great deal of Americans are already anti-mexican (especially in areas like Texas, Arizona, and California where there is controversy over citizenship and immigration policies). I realize that Florida has a large Hispanic population, but TNA isn't going to pack the Impact Zone w/Hispanic people every time Hernandez is scheduled to appear. It all just doesn't make sense to me.
What they COULD do is bring him back under a mask. Give him a Kane like gimmick. Remember how Kane didn't speak for quite a while when the character debuted in WWF. Let him be an associate w/ Abyss. Portray him as powerful, mysterious, and evil. Eventually (1 year down the line) have him feud w/ Abyss. During this time he can work on everything he needs to. Eventually, he can come clean, lose the mask (while retaining the character), and be mainstay. I realize that this is really farfetched.
I guess the bottom line is that Hernandez is not a young wrestler. He will be 38 years old in February, and the window of opportunity for him is diminishing. Sure, he could have a DDP type run, but it is very unlikely. He has relatively good health, so maybe he could go another 10 years.