Don't worry — old crates aren't out of the mix entirely. While they will no longer be dropped after a match, they won't disappear from players' inventories and will still be able to be opened and traded. Psyonix has also advised gamers to keep an eye out for some of the items in the discontinued crates to make a return as a part of different crates in the future. Some are already contained in Rocket League Item multiple crates currently available.
The first crates to be eliminated will be the Champion series. That's Champion Crate 1, Champion Crate 2, Champion Crate 3 and Champion Crate 4. To view what's contained in each one, there is a helpful page on the Rocket League Wiki. They'll no longer be dropped after matches following Rocket League's "next major update," which isn't dated but is set for this summer.
Looking toward the future, the plan is to discontinue crates approximately six months after their initial launch. This should make it easier for players to know roughly when they can expect a crate to be eliminated from the drop system. The developers have also said they'll be announcing well in advance when crates will be retired www.lolga.com