I think the new models were tuned without ADEL in mind. They each have a specific sound that doesn’t benefit from ADEL, but I shan’t say more than that.
The Zeus is still the flagship of EE’s Olympus line. The Phantom and the Legend X are almost standalone products that don’t really fit into the mix. I can’t see why you couldn’t enjoy the Zeus-ADEL even if it’s no longer the flagship; it’s still a beautiful performer regardless of its status.
Also, I should remind you that the Legend X and the Phantom (
especially) have had their prices corrected by Jack and Ryan, and neither of them are pricier than the Zeus. Not that that changes anything in the grand scheme of things, but sometimes it’s healthy to have a bit of vanity.