I'm very much a returning player to all of this, but something I would like to see that could keep the integrity of the current game while injecting some freshness into all of the formats would be to take the Reflections cards (set 9), and allow them to be legal in Fellowship, Towers, Tower Standard, or King block games. While this might be seen as a crazy idea, here's my thought process behind it:
Many of the cards from Reflections were scenes taken from previous films. Book fans also know that some of the lore that the Reflections cards were based upon were from earlier books as well. Here are some cards I would love to see be legal in earlier blocks, if only because of my love of Tolkien's lore and the stories in general.
Elven Rope - This was given to Sam in Lothlorien, yet he can't utilize the card until Movie block. There's definitely some other cards that lower strength of minions, so in earlier blocks, maybe this could see some play.
Merry's Dagger &
Pippin's Dagger - While the movies had those come as gifts from Galadriel, in the books, they were
discovered in the Barrow Downs and wielded by the hobbits on
Weathertop. Pippin's isn't as thematic as Merry's, but I'm willing for forgive that if it creates some cool builds, especially in something like Fellowship block, where people have given me the advice that Pippin is a speed bump and meant to be sacrificed.
Ent Draught - Merry and Pippin drinks these in The Two Towers, Book 3 when they are with Treebeard. Just another card I want to see get its proper place in the Towers block.
Host of Moria, Legion of the Underdeeps - Another 3 vitality Moria minion might give some "bulk" builds, utilizing things like
Threat of the Unknown,
Moria Axe, and the like, or at least give it a strength boost.
Freca, Hungry Savage - Another boost for Dunland in Towers.
Sack of the Shire - Since Towers introduced site control, I would be fine bringing this as legal into that block.
Huorn - The huorns showed up at the Battle of the Hornburg and were also present in Isengard. I would like to see these legal for Towers as well.
I think the community could debate with where the rings and Last Alliance artifacts could be placed. I think alternate Ring-bearers still take their current legality state, as I wouldn't start including those in Fellowship or Towers (as I came back into the game, I wasn't really a huge fan of that rules update anyway).
It may be possible to include some of the Ages End cards in these lists, as some original cultures were supported (Isengard and Moria springing to mind).
I realize I'm not as meta knowledgeable as so many other people on the forums, but for a way to bring some freshness to the game, and respecting the created works of Tolkien, this might be a fun way to start shaking things up without any huge overhauls.
I'm also only interested in sets 1-10 (and even then, I don't chase after the alternate Ring-bearers), as I don't like the culture overhaul change, as part of what brought me into the game was how each culture had its own symbol and uniqueness that gave the game a great feel for the works of Tolkien.
Thanks for reading! I haven't posted a ton, but I love this game and being able to dive into the other posts and pick up on all the knowledge everybody has.