Made several changes this far into the pre-rotation season:
IT'S F***ING HOT IN HERE: Firstly, while I love Bonfire of the Damned and it is a great card and I feel like I'm doing something wrong if I'm not playing four of them (which could lead into another discussion about why I'm not playing R/G Aggro), it's not good in a deck that does so much extraneous drawing and it full-on blows in your opening hand. I still am playing with Ponder so I couldn't cut it completely, so we're down to one.
GOLD TO SH*T: I can explain why Forbidden Alchemy is a good card, but goddammit I put too much care into building a trim and efficient control deck to just go binning three cards for kicks. Too often, they would just sit in my hand until I was in a lot of trouble, and then usually I wouldn't have the mana left over to cast whatever answer I found. So they're out, and Think Twice is in, because frankly that way I'm more likely to have the answer I need at the time I need it. Also, it will work better with Talrand, Sky Summoner when I bring him out of the board.
HEXPROOF IS A REAL PROBLEM: I don't know what your local metagame is like, but I feel like I'm constantly getting paired against decks with Dungrove Elder. I hate that guy. To deal with this I have brought in three maindeck Liliana of the Veil to give them what fer, and obviously she's also good against the resurgent Geist of Saint Traft and, incredibly enough, Invisible Stalker. And when those aren't the threats, she forces discards! And I think that's a really overlooked ability, especially helpful for a control deck with flashback draw spells.
DIVERSIFY YOUR PORTFOLIO: Look, nothing is more badass than Nicol Bolas, Planeswalker. But he was pretty much my only win condition, and an errant Memoricide or Surgical Extraction just about killed me on board. To say nothing of the fact that I had to constantly tiptoe around Zealous Conscripts. So he's still there, but I cut him down to one (along with Gilded Lotus) and backed him up with four other perfectly fine win conditions: singleton Olivia Voldaren, Batterskull, Jace, Memory Adept, and Grave Titan. Ha, and I suppose you can count Staff of Nin on that list if you have a sense of humor. [UPDATE 8/26/12: Now with more Lone Revenant!]
That said, the plan is Grixis As Usual: neutralize threats, gather resources, lay down game-ender.