New Jack Staff. 11 years after the last issue was printed, Image published a new 8-page Jack Staff story in issue 8 of it`s year-long "30 years of Image" anthology celebration.
New Kane. After a stint writing for Marvel in 2021 Paul announced the publication of new Kane material as an ongoing series, via his twitter account in December 2021 and again in April 2023.
Twitter. There was an online discussion board for Paul Grist's comics at Image Comics, sometimes visited by Paul himself. But you can always see what he is up to via his twitter account.