The Upgrade Pack consists of:

Cosmetic upgrades:
1 Metal Chronos meeple
20 Wooden Influence tokens
1 Hephaestus meeple
1 Chronos Helper
1 Milestone display board
1 Idea display board
Extra gameplay content:
7 extra Knowledge tiles
7 extra Private Goal cards
16 Public Goal tiles (extra game module)
The pack that was included in the Kickstarter version of the game, but is also available as a separate item.