[2022] Battle Pass Post Progression

That is addressed in this article: https://worldofwarships.com/en/news/general-news/battle-pass-play-and-earn-rewards/

Each level unlock after Stage 50 receives a Rare Bonuses Container (3 x Blue Eco-Bonuses) and 1,000 Coal!

He had specifically noted what the free track rewards were in the OP. The question was about the paid track.