During journey event, does this icon imply a Valraven ( free tokens ) during the next fight ?

During journey event, does this icon imply a Valraven ( free tokens ) during the next fight ?

No.
I’d say it’s for Stryx enemy team.
No, thats not how Valravens work
The center image indicates the type of troops in that battle. You don’t see a Valraven until it shows up on the enemy’s team. The bird represents Stryx troops.