Data Ravelさんのイラストまとめ

The most clear evidence would be Takato having a Agumon toy in his room. Other evidence could include Takato using goggles, making more references to Digimon that appeared in the TV Show and so on.

The "Dark Research Island" (暗黒研究島) is one of the mysterious laboratories in the game. There Vamdemon, with help from Devimon and Etemon, tried to break a seal of a gate to the Real World using Arkadimon's Digitama. Ancient Sphinxmon was there for unknown reasons.

It was rare to find these two Digimon doing the "This Digivice will purify you" scene.

Later the Sistermon, Hackmon and Gankoomon discovered the the Digitama (Arkadimon) was stolen by Devimon and Etemon and was being used in the Dark Research Island (暗黒研究島), they went there to investigate.

After training, Hackmon and the Sistermon decided to return to Christmas Town (ｸﾘｽﾏｽ町), but a strong blizzard stated. Gankoomon went there in order to investigate the reason for that.

Due to unknown reasons, a phenomenon was making Digimon all over the world to sleep. Ancient Troiamon call tamers other the world in order to fight Algomon, the master of the Thorns castle (いばら城), that is the cause of the phenomenon.

Comparing the official artwork with the two initial artworks, I think that a good concept would be Monzaemon having three different forms with the third one being a neutral point between the other two (Nice referente to Numemon being inside Monzaemon in the concept artwork).

Due to Ogudomon X structure being very comparable to that of Yggdrasil, the System and God of the Digital World, the Digimon simply aren't created with the power to defeat something that is a "God". Both Yggdrasil and Ogudomon are "Opposite sides of a God".

@Mawilli_SM No episódio usaram SandYanmamon, uma variante do Yanmamon adaptada para o deserto. Acontece que a cor dessa variação é cinza, a versão de cor amarela é o Yanmamon tradicional. Então trocaram as cores dos Digimon.

@Convergencia_CD ¿Qué opinas de una nueva subespecie de Angewomon con 6 alas en lugar de 8? 😂