No more wood token, it's cardboard token.
This edition added 4 modules:
Expansion Module 1: Metro Companies - the stockholding expansion from Cable Car. Combinable with expansions 2 and 3, below)
Expansion Module 2: Metro Stations (one additional train car token in the eight colors to claim CENTRAL station lines as an optional action during play)[combinable with expansions 1 and 4],
Expansion Module 3: Central Tracks (8 tiles, 4 of which are chosen at a time, that remove/cover the central station with variable tracks so all train lines will terminate at edge of board)[combinable with expansions 1 and 4],
Expansion Module 4: Station Numbers (gives players an adjustable number of hidden objectives for extra points using 32 station-number tokens)[combinable with expansions 2 and 3].
Also, the cardboard player-color train car tokens have station terminations in the same color on the backs.