Recently, we have gotten our first trailer for Walking with Dinosaurs 2025, which showcases an array of species. However, I believe that there are many species not already shown. Here are the species that are confirmed, as well as ones I believe will appear, in the first two episodes.
Episode I: The Lourinhã Formation
Confirmed
Lusotitan: This new Sauropod will be the main focus of the episode, as one of them attempt to find a mate. They will be showcased with a speculative inflatable air sac on their crest, similar to the Prehistoric Planet Dreadnoughtus.
Others
Allosaurus: I doubt that Lusotitan will be the only species to appear in the episode. I reckon we will see the return of Allosaurus, as it was an iconic species from the original series, and also one of the large theropods of the formation. We will have at least one carnivore, as Thomas Holtz stated, "I mean **something** has to be a menace to the Lusotitan". Additionally, we have an image of a theropod eye with the reflection of a Lusotitan in it.
Miragaia/Dacentrurus: As this is the only Jurassic Episode, I reckon they will try to show off as much varied Jurassic fauna as possible, and what better species to show than a Stegosaur?
Dryosaurus: Another dinosaur from the original series I think may return is Dryosaurus, as it could showcase diversity in the ecosystem.
Torvosaurus: Torvosaurus has become fairly popular recently, so I reckon that there is a fair chance of it appearing. Besides, it could potentially fight an Allosaurus for the Lusotitan. Additionally, the comment that Holtz replied to was talking about Torvosaurus.
Episode II: Cedar Mountain Formation
Confirmed
Utahraptor: It looks like Utahraptor and Gastonia are going to be the main dinosaurs in this episode. The Utahraptors are depicted accurately with feathers, and personally I really like their colour schemes.
Gastonia: One of my favourite Ankylosaurs finally makes an appearance. There will at some point be a fight between two Gastonias, and later a fight between one and a Utahraptor.
Planicoxa: This Iguanodont is known to be making a brief appearance in this episode, making it one of two Ornithopods confirmed for the series.
Others
Falcarius: I doubt many other species will appear in this episode. Falcarius is a bizarre early Therizinosaur, and I feel like they might appear to show off the strange animals that evolved in the early Cretaceous.