I've been looking
here if there were some nice bonus' for the wonders, and I thought these are appropriate for this mod. (That doesn't mean we have to use them all)
Religion
Cities with State religion construct buildings 20% faster/ state religion buildings are constructed 25% faster
Cities with State religion construct units 20% faster
1 less temple required to build a cathedral
Temples build with state religion spread
Units
-15% XP required for promotions
-50% upgrade costs for units
No limit for drafting/ can draft multiple times from same city (palacio de pena or paco ribeira)
Drafted units get the same amount of experience like normally constructed units
2 XP and 50% for naval units in all cities - Venetian Arsenal?
Corporation
Doubles corporation effects
-25% corporation maintenance in all cities
Executives will always succeed in buying a rival corporation out of a city
Free mobility promotion for executives
Increases the max amount of executives to 3
Culture
Converts 10% culture around conquered cities
Free theatre in every city, theatre provides +2 culture - Bach Cathedral?
Colony
Provides 2/3 random colony resources - Torre del Oro?
10% chance of starting a golden age when completing a colony
Technology
Grants first player technology benefits, even if he isn't the one that discovered the tech first
5% chance of starting a golden age when discovering a tech (if overpowered, it can be just 1-2 turns of golden age afterwards)
City
-10% costs for buildings present in capital for all cities
25% permanent defense bonus in all coastal cities - Kizil Kule?
Free commerce in all cities water tiles - Mont St. Michel? (reducing the amount of commerce for the Torre Belem)
1 food for water tiles in the city the wonder is build in - Mont St. Michel?
Vassal
Start golden age when capitulizing a rival/ start a golden age when a getting a vassal (both diplo and capitulizing)