Think the FI vinyl will include the digital-only "segue" tracks (or even a vinyl-exclusive track?!)? If they do a 4xLP (or 3xLP), there should be plenty of room for them. Aside from the obvious things they already did packaging-wise on the CD (vellum, gold foil, spot UV varnish, soft touch coating), think of the cool things they could do with a vinyl. Colored vinyl (including opaque, transparent, splatter, swirl, glow-in-the-dark, etc.), etching... Just hopefully not a picture disc like Lateralus, since they don't sound as good.
I'd REALLY like to see them do something like this amazing Royal Blood "Zoetrope" vinyl.