Back to getting serious, realistically there's only a need for 4, quite a few fights now are designed with 4 gathering points in mind. You could make an argument for 8 points if people are really that bad at determining where the middle point between 2 markers would be, or if some people wanted each person in the party to have a specific spot, but considering they've said no to a 4th before if we can at least get them to budge on that we'll be fine enough.
