Maybe. They’ve been dropping hints on various social media platforms. Here, for example, is the band recording something at RAK Studios in London.
RAK studio London pic.twitter.com/rlPiTmTe4V— Green Day (@GreenDay) December 19, 2021
Next year will see the 50th birthdays of all three members of the band. This would be a nice way to commemorate that, wouldn’t it?
(Via Tone Deaf)