I pondered the same question.
I went with SKB and made sure my current and new drums were of the same sizes. Since I like fusion sizes all my kits are that way and my one set of cases fits every kit.
If you commit to any cases now, you should really think about down the road what you are planning on doing. One thing, if you know what your new drums will be, buy the cases for them now and make them work for your current kit or if you buy them with the new kit, you might get a better deal as a package.
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