Erik Burnham was interviewed on the Ghostbusters Interdimensional Crossrip Podcast and he revealed some things for Year One #2 to 4.
http://www.ghostbustershq.net/the-ghost ... ry-20-2020
"Or um, a scene where--where Egon and Ray were introduced in college."
"We did--did get away to, ah, working him into the second issue. We had him, um, we set the second issue, is ah Ray focused and going back to the library after the Librarian so we set that after Winston was hired."
"And Dan is, gosh, I think days away from finishing Issue #3."
"Um, the third issue was set just before he [Winston] was hired so he's a little...a little bit less in that. The preview---the solicit is out now I should say, not the preview, and that's y'know at the--the Casey Kasem bit, the fashionable nightclub the Rose."
"The, uh, the third issue of Year One with the Rose. I said, "Okay, so we're in a nightclub which means there's a lot of dark and there's a lot of smoke so you won't have to worry about"--he [Dan] drew the club anyway then put the dark and smoke over it."
"The fourth issue is Egon and, um and uh yeah no, on this one I wanted to show their first experience using the Containment Unit. It's untested, uh, y'know, until they put something in it. They don't know it needs to be calibrated or it's 100% working and things go wrong so it gives us...that gives us a bit of Egon vs. Slimer."