Can't tell you how much I disagree with this. Whilst IWTV is my favourite film of all time, there really should not be a sequel. There has already sort of been one - Queen of the Damned - but that didn't do very well at all, and is generally ridiculed, though I haven't got anything majorly bad to say against it.
Plus I believe the original cast wouldn't want to come back, so everyone would be recast. Who could play a better Louis, a better Lestat?
Moving on, I completely agree with the sentiments behind letting The Subtle Knife have its chance. I HATED what they did to Northern Lights (or is that The Golden Compass?) in the way that they simplified it beyond comprehension and changed the bleeding ending! If TSK was to get made, I would hope for a more adult tone and for the producers/director/whoever to stick to the story - there's a reason why it is one of the most read and enjoyed trilogies ever written.