Quoting from the minecraft forums: "
What features are in EE3? Is item X/Y/Z still around from EE2?
I haven't compiled a final list of what is in EE3 yet for the public, but here is the short list of what is in/out;
- Red Matter has been removed. It was a cosmetic tier only to give people something to aim for after Dark Matter. Dark Matter is now the top tier tech in EE3.
- Collectors have been removed. A different method for passive EMC generation will be introduced in the future.
- Condensers have been removed. A suitable replacement with new mechanics will be added in the future.
- The Destruction Catalyst/Hyperkinetic Lens have been removed. Their functionality still exists in the Dark Matter tools.
- The EMC system will remain, but it will be changed to accomodate new and more interesting mechanics.
- There will be a method to move EMC around in "wires."
- More configuration options will be available to both players and server admins.
- EE3 will feature an API, which is not complete at this time.
- A transmutation system similiar to the Transmutation Tablet will exist, but is not ready to be disclosed at this time."
So yes, there will be something that will replace the condenser eventually, but it is currently unknown when it will be implemented. Also the condenser alone didnt take too much stuff to create, it was the energy collectors and relays you put around it
. For now though, you'll have to deal with the minium stone (or the philosophers stone if you cheat it in). You possibly could somewhat automate it by using multiple stones and a few autocrafting tables perhaps? At least till more stuff has been implemented.