You don’t have to draw a line.
Offline editors were cutters that could save budget by telling a story without eating up big dolalrs in the suite that cost 500 an hour. Today we can take a much more non linear approcah (literally) and simply make a show, never drawing that line at all. It’s my opinion that if you can’t offer sound design, compisiting and at least a little bit of animation, you are greatly handicapping yourself as an editor. Today’s editors are show makers, wearing the hats of everything from logger to producer.
There is no industry standard on plugins, just personal favorites but if you do not know After Effects today, again you are greatly limiting your marketability. These simply are not two different jobs anymore.
