Good stuff, I'll type it up in a minute if nobody else has.
UA: The Last Prophet - Gets the last available prophet when the penultimate is taken (guaranteed religion)
UU: Mamluk - Heals every turn, even if it's taken an action. Knight replacement.
UI: Madrassa - University replacement, generates additional science, and gives faith equal to Campus adjacency bonus. Unlocks at Theology Civic instead of Education Technology.
LUA: Righteousness of the Faith - Worship building for Arabia's religion costs very little faith and generates bonus science, faith and culture.