Software development takes time and has many unanticipated challenges that makes time estimation difficult. When developers do provide estimates users, managers etc then get stroppy when they slip by.
Therefore the best strategy is just to ignore requests for time schedules because it's a no win situation.
Nothing about OP's question indicated they were interested to know if there was a regular release schedule. Specifically they asked for the next release, therefore I tried to explain why there may not be a simple answer to their question.