EK needs to be able to switch out one attack with a spell or cantrip every turn for a good universal fix without needing specific melee attack cantrip gimmicks. Versatility would be the fun thing about an EK:
Attack + Shocking Grasp (> Disengage)
Attack + Thunderwave (against a group)
Attack + Fire Bolt (for melee + ranged)
I like this idea!
Shame it wasnt mentioned earlier.

It kinda sucks that Blade Warlocks gets all those buffs, but Eldrich Knight is allready forgotten. :-/