I think Gandalf may be the final Hero in the Against the Shadow cycle, depicted as Gandalf the White. Here's why:
1) The lengthy explanation of the rules concerning the use of heroes and allies with the same title in the Heirs of Numenor insert. Admittedly, this could apply to any hero/ally with the same name -there were many in the second hobbit set- but who comes in and out of play more often then Gandalf?
2) The set has a distinct Return of the King flavour to it. It features Pippin, we know, and frequently the news articles refer to Gondor's greatest heroes. With regard to the War of the Ring who is a greater hero of Gondor then Gandalf the White?
3) Ending the cycle with appropriate scale. The last hero in a cycle is generally the biggest. Which character could possibly be more climatic then Gandalf?
4) The Elven Rings. The final hero in the dwarrowdelf cycle was Elrond, of course, with the powerful Elven Ring Vilya. Maybe FFG are planning a kind of Elven Ring trilogy. Gandalf and Narya in Against the Shadow and Galadriel and Nenya at the end of the next cycle?
Probably all nonsense of course, but just thought I'd open the discussion. What do people think?