The closure order is not overly clear, but I just called the Flagstaff RD. The Coconino NF's website spells it out very clearly, too. Developed campgrounds, day use areas, visitor centers, heritage cites, and some hiking trailheads have been closed. The rest of the forests are open for hiking and dispersed camping, including the upcoming turkey hunts. The currently closed forest roads are anticipated to be open by early/mid April, which is standard procedure every year, weather dependent, of course. And, yes, groups of more than 10 appear to be banned for now.