Hero's Journey means 7* on every toon. The ones in the movie, which will be needed at 7*, are:
- Scavenger Rey (confirmed).
- BB8.
- Poe Dameron.
- Finn.
- Veteran Han.
- Veteran Chewie.
- R2 (that's why his event comes so often).
- Generic resistance guys (trooper and pilot).
- One of the versions of Luke for the final stage (probably CLS, because it's the only version with a lightsaber).
- Millenium Falcon, Poe Dameron's x-wing and resistance x-wing for a ships stage.
Every stage will need different toons, it's unlikely that they ask for only 5 to use through the whole event because that's not how the movie worked.