Yeah gimme a sec, will edit this post.
So without any deep combat spoilers, I will note that Knight-Enchanter ABSOLUTELY delivers on what I wanted from the spec.
Patrick Weekes @PatrickWeekes
Close-combat specialist mage who can fight with a summoned energy blade.
Patrick Weekes @PatrickWeekes
The Spirit Blade is WONDERFUL. Blah blah blah all valid options but SERIOUSLY KNIGHT-ENCHANTER.
Other than that, Mike Laidlaw, in combat Q&A some months ago replied to these questions about Knight Enchanters :
1. Could you elaborate on the theme and mechanics of the Knight Enchanters? Is there a particular playstyle or party role you envisioned, and is this specialization similar to the Arcane Warrior from DA:O?
1. Yeah, you know what: yes, I can. The Knight Enchanters were designed to let mages get up close and personal and the abilities in that tree encourage you to do so, including the ability to be effective at melee ranges. They're different from Arcane Warriors, though. Less tanky. --Laidlaw
2. If Mages are weapon and armor class-locked, how can Knight Enchanters wield blades and wear plate? Armor through crafting, and weapons through "summoning" them?
2. Exactly that. --Laidlaw
That's about it, i think.