I am not sure I can agree with you on this diaglo.
While I agree that the overlaying theme to both adventures is fight against Drow, I would not say City of the Spider Queen (CotSQ by James Wyatt) is a "remake" of D1-3 and Q1 (Gary Gygax, David Sutherland, Dave Cook and Jeff Grubb).
The encounters/maps all differ. CotSQ has a 'sub' plot which somewhat follows the "War of the Spider Queen" novels (R.A. Salvatore).
(Note: I agree there are many similarities: the Undying Temple on the ethereal plane (CotSQ) and Lolth's Spider ship on the Abyss (Q1) seem to have the same 'theme' but all encounters/maps differ).
Again, if anyone knows of a conversion for the D/Q series, I would love to hear from you.