Already, there has been mention that the movie is "X-Men meets Terminator," by Fox Marvel movies consultant Mark Millar.
We've also heard that Hugh Jackman as Wolverine will be featured in an extended role, most likely due to his near age-less immortality, as well as other members appearing from the first X-Men movie.
"Yeah, we performance-captured the giants first on a volume stage," Singer explained. "The challenge that we had, that Avatar did not, was that you've got real actors interacting with giants. This was my first 3-D movie as well, and I took a lot of care with the stereo. But to do a fully animated kind of thing? I definitely want to use this technology again, and I might even be using some of it in a different way in X-Men Singer continued," I don't wanna say how, yet, but I'm definitely using some of this technology on X-Men which I never used in any of the other X-Men films."
MTV then pressed Singer about meaning a full-CGI character in X-Men.
"That's the thing I don't want to talk about. I'm not sure. I'm doing research on it now," Singer said.
While it would be a no-brainer to do the Sentinel robots in CGI, Singer does point out that he wants to use the technology in a different way for X-Men -- perhaps meaning for something else.
In the "Days of Future Past" storyline in the comic books, the Master Sentinel, Nimrod, is mutant-hunting sentinel from the future -- with one of his powers being the ability to convert to a human form and reconstruct his entire body if torn to pieces.
Could Singer be giving us a human CGI character to accompany the Nimrod CGI robot?
X-Men: Days of Future Past has a July 18, 2014 release.
(CBN's Chris "Doc" Bushley contributed to this article)