First off, I love this thread and how FBTNB won nats.
Secondly, I'd like to bump this for speculation and documentation of the meta with the release of I/J and Tin XXVI. I'd also like to document all significant variants as separate decks. I'm also going to change it slightly so it's complete decks, not individual offenses/defenses.
Personally, I think various forms of TGT and The Deck will be really popular, but I also think we'll see some balanced decks start to rise to solid competition. I'll work on my actual list later, but suffice it to say I think TGT will rise to the top with Purple/Teal as a base.