Cargo storage fees will be increasing in an upcoming change, making stockpiling large quantities of cargo require a little more strategy as to where/if you're going to be storing things in high quantities.

Keep in mind that you pay a fixed fee per 100 units of cargo, so you will have the same IG monthly rate if you have 2 or 100 units. So small collections won't really see a massive hike, while those that may have stockpiled many thousands of cargo will be more seriously impacted.