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Though Mashima likes to recycle parts of his work, I don't think he'll recycle too much of the plot. The nature will be similar in a sense but it's product of how it comes out should be different.
So it looks like Minerva put Lucy in a coma and so that is why Levy had to narrate. I hope it is this simple.
So, I doubt that Levy's narration is caused by something as simple as Lucy being put into a coma by Minerva.
I'm thinking that Lucy might be used just like her mother was used 14 years ago.
And thus, just like her mother, she will disappear.
This would explain why Levy is the one narrating now.
And the next arcs would be about Natsu and the others trying to figure out what happened to Lucy.
And doing so, we will also learn what happened to Layla and possibly the dragons.