If we get to see ANY cricket, I can't see spectators allowed before the end of May, so no attendance for 4 home County Championship matches.
If attendance is allowed from June, social distancing will be in place, so limited numbers will be in attendance, and I expect that could be limited to around 1,000 for safety reasons.
If you attend T/20 you will need membership, if you don't, membership may be a gamble because if there are maybe 3,000 members, you may only have a one in three chance of being selected for attendance.