Yeah, the profile posts are seen more as a last resource to give a fast communication.
If you want people to remember your work is still there and is going to restart soon, it's better to post in the comic itself.
There people will more likely show signs of being alive and they'll appreciate you doing something special.
In my case, I decided to do a summary (contains NSFW
):
So half the summary are remarkable panels from the first chapter that help the readers remember what was the story about and at the same time is a stand-alone strip 
Hope I helped with this 