I'm eagerly awaiting future e-net reworks. The challenge lies in creating a system that is plug and play for the beginner, while still allowing the knowledgeable engineer to feel comfortably challenged. Redpower2's blutricity hit the nail on the head in both aspects, but unfortunately never really got off the ground due to being closed off (for shame). And so far, no other system has done it quite that well.
For example, Thermal Expansion's new RF system is plug and play to the max but has no actual gameplay in it at all, rendering it boring and unrewarding. IC2's current "Work in Progress" implementation, on the other hand, seems too difficult to pick up for the average player, if the costant forum posts are any indication (possibly a result of said WIP status). Buildcraft is currently closer to the ideal, as it offers both instant "plop down and it works" mechanics as well as room for very complex design later on, but unfortunately it decided to annoy players with the fact that the whole system is intentionally designed to consume fuel around the clock no matter what.
So here's me wondering where IC2 will end up when all is said and done. From the current design direction I reckon it'll still be firmly on the complex end of the fence, with experienced players only in mind. But if the devs can somehow find a way to allow newcomers to start using the power system without having to read up on it, it has the potential to become a really good system once again.