Yes, it's being replaced shortly by the HTC 11.
Australian stock, unlocked. Only available in-store (nationwide - except the Sydney Airport store), as the phone has been removed from the website.
http://www.htc.com/au/smartphones/htc-10/
http://www.androidauthority.com/htc-10-revisited-770279/
Edit 30/5: The price is now online as well.
Not the same exact situation but I've been carrying around an LG G2 and am very tempted by this deal! Doubt you can get previous year's flagship phones much cheaper than this….unless you want the LG G5, which suffers from the notorious LG bootloop issue!