--down the rabbit hole is just a euphemism for entering the dungeon via whatever dungeon entrance there might be (or in some cases going to a different reality, e.g. "Follow the white rabbit" from Matrix)
Does this not look like an entrance to an underground lair?
--the movie version has a prophecy of Alice being the savior of Wonderland. Rather a cliche for fantasy rpgs, but it happens often enough.
--ambushes from weird and ferocious creatures happen almost immediately.
Jubjub Bird by David Elliot (from Carrol's Hunting of the Snark)
Either of those could be interesting monsters to fight.
--there are magical potions aplenty, though in one case it's actually disguised as a cake.
--there are magical items (fans, swords, potions, hats, timepieces)
--weird magic (time stopping still during the Mad Tea Party for example)
--magical swords (The Vorpal Blade)
--nasty monsters to defeat at the end of the campaign (the Jabberwocky)
Jabberwocky vs The Vorpal Blade
I'm a big fan of the end fight sequence in the movie.
I think it's an interesting thought experiment to re-invent or re-tell stories in a new genre or look at them in a new way. I especially think it's interesting to change the story almost completely based on changing viewpoints, or mood.