from what i understand it wont happen, too many people use tt for ec and mats for certain items. I THINK you may be thinking ov the TT pvp map idea, in which case it wouldnt REPLACE tt, but rather be another tt with different purpose. I think its already easy enough to get ec. If they made it too easy, it'd be no fun. HOWEVER, it does bug me how you cant seem to do ful lunar runs in one go, i mean, i did 5 out of 8 vallies in the same instance, but even THEN i had to reenter several times :3
If we could make it so we could go to every part, that'd be pretty cool, and maybe throw it tougher enemies on the solo runs. Just an idea to suppliment yours.