I've seen that most of enchantments become upgradable now, so i think remained enchantments should be the same :
- Brillance :
- Reduce magic unit build cost by 25% ( no upgrade ) ---》30% with bastion lv2.
- Smithy :
- Refund 15% gold( no upgrade ) ---》20% gold when your units died
- Mana burst : magikill/meric will take an area that can get 100 dmg/hp ( no upgrade ) ---》150 dmg/hp ( temple lv2 ).