The GTX 1070 Ti is very close to the original GTX 1080, spec-wise, and this makes it more appealing for crypto-miers. It's supposed to be released in late October for around US$430.
https://www.notebookcheck.net/Nvidia-GTX-1070-Ti-most-likely-to-arrive-in-late-October-for-US-430.249926.0.html