User blog comment:Miskos3/Fairy Tail 539: World Destruction, Review/@comment-7418318-20170616061451/@comment-7418318-20170616163857

I see several problems with that. For one the Eclipse Gate was made to connect basically to itself in a different time, so it might be impossible to connect it into the ravines of time.

Then there would be several problems with the construction and charging of the Gate. Building an Eclipse Gate is illegal. Unless the rules have been changed since the GMG or they get special permission, they'd have a hell of a time keeping such a project secret. And to top it off it took the royal family years to charge it up despite having a whole lot of magical energy to siphon from in the form of the GMG. If it's just Fairy Tail and their closest allies, it'd probably take more than a decade.

And finally with no Celestial Spirit Mage on the other side to stabilize the whole thing, they would risk the Eclipse going haywire again, connecting to god knows when.

I'm not saying it's impossible, but it would be a hell of an endeavour and a hell of a gamble on top.