The first bad news:
Xperia C5 Ultra and Xperia M5 will be available in selected countries across emerging markets from mid August.
Boldfaced emphasis added by me.
That doesn’t sound like the U.S..
The second bad news is that in China a Weibo — not from Sony — said the price will be what translates to around US$485. That is waaaaay too high a price.
I would so jump on that Mint one if the price was right.