It would be especially interesting if we could retrofit some of these abilities into existing neural architectures with the help of technology. For example, one could imagine an implant or indirectly connected device which increases your "L1 cache size" (working memory capacity), or provides supplementary "GPUs" to offload spatial reasoning. They could change the way the brain itself works, or perhaps just act as external modules with fast data lanes which your brain eventually starts to treat as extensions of itself, like it can with prosthetic limbs (or even imaginary "virtual" limbs, like with a mirror box).

It may not actually ever be possible to do it without direct, messy biological/genetic engineering, but if it is possible, I think it would have an incredible impact.