I wouldn't wait that long. After the next one gets eliminated cut all the point values in half. Or else we're going to take the better half of a year
By definition, every vote removes 1 point from the board (or, in the instances where you vote down an option with only 1 point remaining, you leave the total unchanged, but those can be accounted for.) Hence, if we tally up the scores and divide by the posting rate, we can get an estimate for how long it will take to eliminate everything in the worst-case scenario, that is, where voters prolong the vote as long as possible.
There are currently 1342 points on the board across 56 options. This means a maximum of 56 "wasted" votes that don't reduce that value, plus 1341 votes that actually do reduce the points by 1 (because there must be at least 1 point left on the board at the end.) Hence, we have an absolute maximum of 1396 posts remaining. Even if we take a very conservative estimate and assume that 40 posts in the thread are non-voting (e.g. corrections, comments, etc.), we would have had 280 votes in the 28 days, which works out to 10 votes per day. That means 140 days from now, or 140+28 = 168 days in total. That is actually (very slightly) less than 6 months, assuming the rate of posting remains constant. If we end up with fewer wasted votes, points remaining on the board for the ultimate winner, and/or increased rate of posting, it will almost certainly be less.
Given I believe there are at least two (myself and at least one other) people who are waiting for the list to shorten and then intending to participate after that, the rate should actually go
up with time, not remain constant. So I don't think this will take 6 months....but I do think it's going to run longer than intended.