I have asked Perplexity.ai how it would be on this market. Here the answer: Based on the current information, I would bet no on this prediction.

The IUCN Red List currently has a significant number of marine fish species that are either data deficient or not evaluated. According to the search results, about 40% of the roughly 13,000 marine fish species listed on the IUCN Red List fall into these categories3. This means that a large portion of marine fish species still lack formal conservation status assessments.

While recent studies have used machine learning techniques to predict the conservation status of data-deficient and unevaluated species, these predictions have not yet been officially incorporated into the IUCN Red List23. The IUCN is considering the use of these new technologies, but implementation would likely take time3.

Given that it's currently March 2025 in the scenario, and the IUCN Red List updates typically occur annually, it seems unlikely that the IUCN would be able to officially rank 80% of saltwater fish species by the end of 2025. The process of evaluating and incorporating new data for thousands of species is time-consuming and resource-intensive.

Furthermore, the IUCN Red List includes various taxonomic groups beyond just marine fishes. The latest summary statistics show that only 4% (3-25%) of selected marine fishes have been evaluated for their conservation status5. This low percentage suggests that reaching 80% by the end of 2025 is improbable.

Therefore, based on the current state of marine fish assessments and the time remaining in 2025, I would bet no on this prediction.