What of the Dragons of the First?[Theory]

[Anonymoose]

That dragons can hop dimensions? we've seen it happen during omega story

Wait, when?

As far as any developer has ever confirmed, Omega and Midgardsormr crossed the sea of sea of stars, aka the interstellar vacuum, aka a vast expanse of regular old space within the Source dimension, not across any dimensional boundaries. I could also foresee someone pointing to the hydra in World of Darkness or the void dragons on Eureka, but those are both misunderstandings, as well; the former were bioweapons fed to the void by Xande, the latter were dead Source dragons possessed by voidsent.

[Mansion]

Wait, when?

As far as any developer has ever confirmed, Omega and Midgardsormr crossed the sea of sea of stars, aka the interstellar vacuum, aka a vast expanse of regular old space within the Source dimension, not across any dimensional boundaries. I could also foresee someone pointing to the hydra in World of Darkness or the void dragons on Eureka, but those are both misunderstandings, as well; the former were bioweapons fed to the void by Xande, the latter were dead Source dragons possessed by voidsent.

Isn't Fay2 mentioning the times where Dragons just... pop in the Interdimensional Rift? Middy comes in at the end of Sigmascape and then the one whose name I won't try to spell saves us at the end of Alphascape. So in a sense, they do storm in another dimension.
Now I'd think the interdimensional rift remains a space created by Omega, on the Source, for its little experience. It's not as wide as Shards for instance. SO perhaps Middy and co kind of already know what Omega is up to and what it is capable of, which allowed them to slide in Omega's DM.

[fay2]

Wait, when?.

exhibit A

[Keever]

exhibit A

But...we took Midgardsormr there, lol. He was with us as his li'l dragonet form as usual, and turned into his BIG BOY NECK form to chomp the Omega shield bubble that was suffocating the WoL. That's not "crossing dimensional barriers".

[Seraphor]

Wait, when?

As far as any developer has ever confirmed, Omega and Midgardsormr crossed the sea of sea of stars, aka the interstellar vacuum, aka a vast expanse of regular old space within the Source dimension, not across any dimensional boundaries. I could also foresee someone pointing to the hydra in World of Darkness or the void dragons on Eureka, but those are both misunderstandings, as well; the former were bioweapons fed to the void by Xande, the latter were dead Source dragons possessed by voidsent.

Midgard also states that he came "to the Source" not "to Hydaelyn" indicating that he came from somewhere other than "The Source" which would make it a shard.

But actually, this question has already been asked to the devs, and they've admitted that they haven't decided if Middy came from another planet or another shard yet.