Given the myriad of examples already laid out, I think it's safe to assume we all are familiar with the unfinished f/x phenomenon.
My issue is when certain scenes are left out of trailers for the reasoning of "unfinished f/x" even though said trailer
already contains unfinished work. No greater example can be given than GL.
They said that the reason the initial trailer was underwhelming was because of the lack of finished effects work, particular with Oa, which would show the scale & epic nature of GL. Yet and still, there's numerous images all around this site of things that were improved in the Wondercon footage that was included in the first trailer
I guess I'm saying if it's ultimately that important to release something, then just release it finished or not, because your still going to be doing that regardless
somewhere in the footage. Ironman's tank scene was skeletal compared to what it really became, but it was the money shot so they stuck it in there anyway, and it still achieved the desired reaction. Either that, or just wait to release anything like they did with Captain America, because now, as awesome as I thought the Wondercon stuff was, DC has to battle the perception created from that first impression. And the consensus, even to the brass involved, is that it was underwhelming.