IDS/IPS Replacement Product?

[rlmoorex]

What Palo Alto product represents the modern replacement or incarnation of an IDS/IPS?

[Brandon_Wertz]

The nearest thing would be the "Threat" subscription service.

With implemented applicable policies. 

[reaper]

every single firewall (smallest to larges including the virtual ones) come loaded with IPS/IDS functionality, the only thing required to activate this is a ThreatPrevention license

Check out this page for more information : Threat Prevention