Technically he is saying that he mistakenly used the word "remake" to refer to "new concert arrangements of music from FINAL FANTASY XII", but in context it is obvious that a remaster is basically confirmed since he mentioned the FFVII remake onstage just before talking about FFXII "remake".
Yeah, I wholeheartedly agree. I was the one who posted the way he announced it from the stage at the start of Distant Worlds, and it was clear that he was referring to the game and not a soundtrack/individual tracks from the game. I mean, the quote I posted can even be extended further, as I just put in the main portion (trying to get his words as close as possible, but there may something here or there that I left out):
"And I'm sure you've all heard the big news... Final Fantasy 7 remake!
We're all very excited. I kept begging Square Enix, how about by the end of this year?
They said, 'Maybe Arnie-san, maybe, maybe.' So I think it will be later. (laughs)
And! There's a Final Fantasy 12 remake underway as well.
That's coming out soon.
And of course we can't wait for Final Fantasy 15, coming out soon.
It's very important that we have a special guest with us in the Pittsburgh Symphony in beautiful Heinz Hall, so we brought with us, and this is his first time this year to America, he joined us in Los Angeles a few months ago during the E3 convention, and this will be the second time that he's appeared with us in Distant Worlds in America. Please welcome the composer of Final Fantasy XII.. Hitoshi Sakimoto!
So I thought it's only fitting the next piece we should play come from Final Fantasy XII, so we'll be playing the beautiful Dalmasca Estersand. But before that, we always like to play this tune at the start of each concert."
That's when they went into the Victory Theme, and transitioned into the Dalmasca Estersand.