Registration for receiving updates on the redistricting process is available here.
No. The County Charter requires five Supervisorial Districts. A voter-approved Charter amendment would be required to change the number of districts.
The current Supervisorial District map is available at the link below: Download Current Fresno County District Map(PDF, 1MB)
Yes. California law requires the County to maintain an internet web page dedicated to redistricting for at least 10 years.