I've been 60 for like 4 or 5 days now and I have two things to bring up about Enochian.
First is that Blizzard4 and Fire4 can be frustrating to cast.
They can be cut off with .2-.1seconds left on the cast if either Enochian or umbral ice time out. It also happens if I Swiftcast it, the animation will go off as if I cast it but the spell won't come out. I think it would be cool if the cast could still go through if we have over 3/4 of the cast done, and not just cut us off, leaving us standing there thinking, " oh, nothing happened".
Second is recasting of Enochian. Make it so that the buff as a whole is renewed, and not just the next tier, as if I cast Blizzard 4. If I want to keep busting out spells I sometimes preemptively recast enochian right when it times out, and it may give me 5 seconds instead of 30 seconds, now I have a long cooldown for 5 seconds of up time.