Conversation so far:
What is the DC Rebirth?
DC Rebirth is a 2016 relaunch by the American comic book publisher DC Comics of its entire line of ongoing monthly superhero comic book titles.
When was the DC Rebirth relaunch?
The relaunch was in 2016.
Did DC Rebirth receive any recognition?
Are there any other interesting aspects about the Riddler in DC Rebirth article?
Blackmailing the approaching guards with details of their children and families, Riddler walks out freely before intruding into Joker's office.
What does the Riddler do after intruding into Joker's office in DC Rebirth?
Riddler seemingly offers the Joker a partnership, acknowledging that if either of the two men individually kills Batman, the other will be left forever unsatisfied.

Question: Does Joker accept?
Self-contained rewrite: Does Joker accept Riddler's offer of partnership in DC Rebirth?