Maybe other 'enchantments' of a technical nature say 'upgrades' for reduced power consumption or higher power storage. If its the implementation that's an issue adding extra batteries, circuits or the like as item combines on an 'upgrade bench'. Or of course there's the options of extra GUI's with slots for 'upgrades' (like the miner).
I think something to this effect is in the works. I think someone suggested Nano-based upgrades, but what if the Dev's implemented something akin to the BC 3.0 circuitry table? You know the one that can make Redstone, Iron, Gold, and Diamond Chipsets when receiving power from Lasers? Just our's would allow for adding special functions to the regular and advanced circuits which can be integrated into existing tools to add "enchantments" or by way of meta-recipes allow to be crafted into new tools entirely.
Of course, such a 'table' would have to be powered in some way. Oh, and the circuits can only handle one "upgrade" at a time and (I really don't know if this is possible, but here it is) the circuit can only be added to an existing tool when the tool/armour is out of EU.
As for the functions themselves, I'll leave that to the community.
To sum it up: a powered "Upgrade Table" to allow for the attribution of regular/advanced circuits for specific upgrades to new or existing tools.