Going to Wallis & Futuna

I was wondering whether anybody could quickly help me with a conundrum; I'm currently in the Solomon Islands and have flights booked to Vanuatu and New Caledonia; I then plan on going to Wallis & Futuna, is it prudent to book the flights now on the internet or perhaps wait until I get to New Caledonia and perhaps get a deal on both islands, I can currently get a return flight to Wallis for XPF 79,000 but wanted to spend 2 night on each island
If anybody could let me know, that would be fantastic
Steve

Since Aircalin has a monopoly on Wallis routes I highly doubt they will do late discounts nor do they raise fares near departure. I have done quite a bit of checking of Aircalin flights and I never saw the fares for particular dates change. But prices can be different for each departure date. I doubt these flights sell out either so I doubt it matters that much.