It's been pretty close so far. It's obviously either going to chop, and/or use the original published version as the basis, not the full version (only going to be 30 issues, after all), but as yet, it's not skipped anything major. It may have cut the post-die-out vignettes of non-major characters, or I may be misremembering when they were put in, and they just haven't gotten to them, yet - the ones before and during the plague are there (or at least some of them are...it's been a few years since I've read the book...)