You can see a brief overview of the sequels that followed over the years on the site, from June 1989’s release of Valis II on PC to August 1991’s release of Valis IV on PC Engine Super CD-ROM².
To prepare for the milestone, Edia launched a special 35th anniversary website to celebrate the series and, hopefully, pave the way for more to come.
We’ll have to wait and see if the Coming Soon section of the site fills out with anything interesting.