If Phoenix gets a GT version, it may have Phi return (though the episode length may make it carp cut fights), and may have the Goku Weight to represent Hades. If they can beef up Spriggan, they should also be able to beef up OP Beys like Phoenix, Hercules and Salamander, too. I don't mind if it is not the same owner anymore, I just want to see the meta burn.
At most, we may be able to see cameos of the older characters from Burst to Chouzetsu, but they are basically re-introducing those characters as foils which are the new characters in GT (ex. Lodin is a rehash of aH's owner, Fumiya is the opposite of Free, Amane is like a mix of Valt's ragtag sidekicks, etc).
If the Instagram post I saw was true, then Aiga is the (hopefully temporary) owner of Lord Spriggan, and may be out using it under Shu's instructions (maybe to scout and train worthy Bladers for the international championship?)
End of GT might just be a faster-paced version of Chouzetsu, though we still don't exactly have an antagonist introduced in the anime yet (unless the manga already has established one)
Ore wa tsuyoi da
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