Whoa whoa whoa, compose yourself! The announcement only said "new trailer," not plural. For all we know, it could be a short little thing that just shows us footage that we have all seen already.
Yeah, I was thinking the same thing, too. But the fact that the picture says KHII.8 and KHIII threw me off a bit, because haven't those two things mainly been kept separate thus far (I'm not entirely sure on that; I might be remembering the D23 Japan descriptions wrong, and maybe the II.8 and KHIII stuff there was one long, continuous thing instead of divided up)? But you are right in that Square could very well just maybe have a small KHIII thing at the end of the II.8 trailer, or even nothing new of III at all.
As misleading as my last post was (and I'm really sorry for that! And I thank you for being concerned for my well-being on the off-chance that this goes nowhere, BlackOsprey. I truly do:3), I'm still taking this all with a grain of salt, so hopefully I'll be okay
And fortunately, I know not to post this possibility--because really, as you so wisely pointed out, the post says trailer singular, so really the chance we might get a bit more is a slim possibility and nothing else--on social media. Mainly because I don't use the sites much, myself. ^_^'
But gosh, do I hope that everyone learned their lesson from last time, and won't blow this out of proportion and then blame Square if all their dreams aren't meant here. Here's hoping...