Yes, I copy and pasted his name. I'm not ashamed to admit it. 
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I thought his character was given a decent amount of closure with his decision to not repent of his sins to the Monster/Judge and his apparent death sentence for his defiance. I suspect that any further appearances would simply be as a ghost cameo, ala Libby and Ana Lucia, which doesn't seem to be what the actor is looking for.

In an interview with TVGuidemagazine.com, Lost's famous Season 3 casualty Mr. Eko, actor Adewale Akinnuoye-Agbaje, admitted that'd he would, in fact, love to return to the show to play the character once again. Akinnuoye-Agbaje's Mr. Eko was an immensely popular character that had to be killed off way before his time after the actor asked to be released from the show prematurely. With the last season of Lost fast approaching, we're all expecting to see some past favorites return. "To be able to give that rich character some completion would be nice," said Akinnuoye-Agbaje. And while the actor keeps in touch with fellow ex-Losties Dominic Monaghan and Harold Perrineau, it is still unknown whether or not he'll be back for the hit ABC series' endgame.
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I thought his character was given a decent amount of closure with his decision to not repent of his sins to the Monster/Judge and his apparent death sentence for his defiance. I suspect that any further appearances would simply be as a ghost cameo, ala Libby and Ana Lucia, which doesn't seem to be what the actor is looking for.