Does this mean it'l come back on may 5th?
There wasn't anything specific about how andeh is gonna update his game in his tweet, but i'm assuming that he's gonna release day 8 for one of the love interest for patreon, and for public update he's gonna continue with day 7 of the ones that aren't public yet (i think it was Mark and Anders) unless you bought the limited version where he put the remaning of days 7 for public.
It's a speculation and i don't know if it is gonna be updated that way but we will surely have some info on May 5th, for patreon and/or public
So to answer your question, YES, it means AfterClass WILL come back on May 5th ^w^