The summer series seems to have gone into hiatus...
...yet there are pressures from existing contracts, timing of the Grand Prix, and an as yet unexplained desire to put a long mid season break in the middle of the championship
Story Here
Perhaps the new season will start in January.. maybe it won't..
Presumably the teams might like to know like soonish to plan car & parts builds and/or sales deliveries, leave requirements and any other thing..