Advanced Assembling Machine :
Has a 7x7 crafting grid, allowing the craft of complex things, although it is not instant, it requires time and energy.
Elite Circuits would be crafted on it, Tier 2+ machines and iridium plate alloy.
This would replace MANY recipes from the assembling machine, although simpler ones can be kept there, like random parts assembling.
I agree we need something like that for very advanced features. Not for Elite Circuits/Data Storage Circuits and such though. That should be used for some new features.