GC is probably alluding to one of their current internal builds, but:
Hammer of the Righteous/Crusader Strike Cooldown
Crusader Strike - 3 sec cooldown. Hammer of the Righteous - 3 sec cooldown. Cooldown shared for both.
Source
This leaves our haste scaling with autoattack, seal damage, Censure, Exo glyph, Consecration, HoL procs from mastery, and frees up one talent point as well unless they replace Sanctity of battle with something mandatory. On the bright side, it resolves all <1 gcd issues brought up by the differences in haste through the tiers.