...As a writer having fun with story, I understand doing what you want because you want to.
....As a fangirl sort of hoping that the last book in a series will literally be the last, that the engaging author will let go of characters that managed to hold interest for two and a half out of three books, and perhaps come up with something that will hold interest again....As that fangirl, I'm thinking that if you didn't write the great and rousing speeches in Braveheart, The Two Towers, or Independence Day, let's not pretend you did.
...If you must, and you choose to twist a phrase in tribute, just quote. It makes it clear that you are honoring a classic and keeps grumpy fans from writing stupid blog posts like this one when they should be finishing your book.
Fell deeds await... Now for Wrath... Now for Ruin... and the Red Dawn...
There's a good one.