Well the PC players already have mods and console commands for those who wanted the DLC but could not be bothered going to too much trouble fighting vampires. Even if Bethesda patched the game, they are not going to remove a major feature, so if you are a console player who cannot be bothered or just do not have the skills, I doubt you will ever be playing Dawnguard. DLC is not made for everyone, maybe the next one will be more to your liking.
Yes I have known about the amulet since the day it was released on Nexus and you can't help reading it earlier on in this thread, and if you read it there is speculation about it's effectiveness. I must be a lazy gameplaying not bothering to babysit all the NPC's (because it's soooooo much fun to do, just crazy dood) or I must be dumb and don't have the skills because just typing in the timer changer may not be enough even the author of the mod wasn't excactly sure but if you know more please share it with us. Yes I did play Dawngaurd on the Kidbox, that's why I'm on the PC now because I disliked how ridiculous Beth. can make somethings and at least on the PC I can change some of the rubbish in the game.
I love Skyrim and I love my house, but like my house there is alot of [censor] in it that needs fixing.
And as for the next DLC I can't wait to see all the great features in that!!!