It's next to Prince of Persia, in hell.
But honestly, more than Prince of Persia, fans let down the series. Conviction was fantastic and a new radical invention for stealth gameplay. Every main stealth series has since copied marking enemies, like Uncharted, and Metal Gear. It was amazing, and Blacklist just expanded it.
Fans were shitty towards Conviction and Blacklist and were conservative, and slow to adapt. It was a new series, from a new team, and worthy of supporting at that time. But people just lionized the old Xbox 1 games and failed to buy or support the new series so now its dead.
In this case, I really do blame fans. Both the new games were great and both games were recognized as influential by game devs who copied them. Fans were slow to support them both and failed.