It sounds like all key information are nonetheless in flux, although Rocket League Credits some of Psyonix builders have already clarified some factors on Reddit.
For example, the developer confirmed that crates will remain in participant inventories until this rollout takes place. After that, they may be “replaced with a usable opportunity.” Likewise, keys will continue to be available until that point, and then their cost might be “honoured”.
Interestingly, Psyonix developers defined that it’s no longer letting Buy Rocket League Items move of the huge economic system that sprung up around key buying and selling. The new gadget, whose form has but to be confirmed, may discover a way for this marketplace to retain without the element of blind bins.