In PA, all high school refs have to attend a Rules Interpretation meeting before the start of each season. Those meetings review the rule changes for the year, and also address new issues. The meetings for wrestling refs are starting to take place across the Commonwealth. From the one I attended (virtually), and reports I've heard from others, it's surprising how much uncertainty there is about wrestling for this season.
On a competition level, there is still a lot of uncertainty. As with the fall sports, each school, and each league, is making independent decisions. I know of a league that has decided they are only have league duals -- no non-league duals. That same league has decided that their middle schools will not be having teams this season. Other leagues in the same area appear to be leaning toward just in-league duals, and most of them are not starting their season until after Jan. 1. As for youth wrestling, it still appears that it will be canceled this winter in this region.
For refs, the key take-aways are: be flexible, expect fewer assignments, and stay safe. in PA, high schools are required to provide a changing room which includes a shower for refs. (Those requirements don't apply to all fall sports, but the PIAA granted each school the ability to suspend those rules for sports to which they did apply in the fall.) It appears likely that many schools will be suspending that rule for the winter sports, which could be a PITA for wrestling refs, as both your clothes and your skin is all over the mat, and most refs want to get the clothes off, and take a shower, ASAP at the end of the match even when there isn't a coronavirus pandemic.
The National Federation of State High School Associations has provided some interpretations on the NFHS rules (rules that cover all high school wresting, except for prep schools) that:
1. refs can wear gloves, or long sleeve jerseys
2. refs can use electronic whistles, or a whistle cover
There is a belief (nothing in writing yet) that wrestlers will be instructed to not shake hands before a match, and that refs will not be required to raise the hand of the winning wrestler. There are also rumors that weigh ins may be totally changed, with one team weighing in in one room, and the other team weighing in in another room, or both teams weighing in in the same room, but separately. Again, these details still seem to be in flux, with leagues and schools trying to come up with protocols with which they are comfortable.
Should be a season like nothing we've ever seen -- assuming they are able to even execute that what they are leaning toward. As for me, I'm pretty sure I'm going to opt out of reffing for this season.