IDW writer/editor Tom Waltz just posted the below image/caption on Twitter…
“Oh, Tom, you tease – what could this picture mean? Find out soon! #IDW”
Real Ghostbusters meets Ghostbusters. 
That is what it looks like. I didn’t think anything could top the Turtles Crossover. If this is what it appears to be I am getting goosebumps. 
Oh this is gonna be fun!
Oh man, oh man, oh man!
This is going to be sweet!
That’s freakin’ rad.
I recall they were trying to do a crossover for Mass Hysteria! at the end of Volume 2 but it didn’t happen. Wonder what changed. I suppose they’re still testing the waters with another crossover mini. Super excited for Wonder Con now.
Excitement abounds!
This could be epic!
“Why are your jumpsuits multi-colored?” “Why are you blonde?” etc etc etc
How will they react to an “intelligent” Slimer (talking, hanging out with the guys, etc…)
Both Egon’s: Fascinating.
RGB Venkman: These guys look like those actors they used for that movie about us.
WOW!!!
Looking forward to this when it comes out.
Yeah, I bet they’re going to wish they destroyed the Interspatial Teleportation Unit after they tossed Chi-You. lol.
But I can see Egon and Ray voting to keep it around because of its invaluable source of research data.
It’ll be interesting learn who they chose as the antagonist - someone from the IDWverse, from the RGBverse, both, a new character…
Oh My God!!! I didn’t even think of what could be so big that it would take these two teams to bring down, or who the villain or villains could be. Now my excitement has quadrupled.
Erik had already set up that the Boogeyman was hatching an escape attempt. Maybe he has something to do with this?
Glad to see the IDW comic books are continuing. I loved the Ghostbusters/ Teenage Mutant Ninja Turtles cross over stroy and I am sure that I will enjoy this as well.
same here guys, I can’t wait to see what Eric and Dan have in store for us!
Hmm, I didn’t think about that possibility. Rodefhiri or any bogey for that matter would find portal to other dimensions rather tantalizing since it means more meals.
Hey what’s with the 5 different Slimers? Are these all the looks that he sported through the seasons?
Awesome!!! It’s Proteus!!! Looks like there is unfinished business with that god, of course it would take 2 teams of Ghostbusters deal with him. I will say it again this team Rocks, they are always outdoing themselves. Now I understand why there are so many Slimers in the image. It’s so Slimer can be on every cover. This is going to be epic!!
This should be pretty special. I hope it sells well, not that I’m not a fan of Burnham and Schoening’s Ghostbusters, but I’d go nuts for a new RGB comic.
Hey proteus! Hmm I wonder if after he was defeated in the RGB’s universe he ended up in the IDWGB’s verse? Either way Im excited.