With the release of the new Ultraman Rob work, many doubts have arisen before the work is actually released, such as who is the mysterious person who summons the monsters, and whether Dark Ultraman will appear. In which episode will he appear again? Will the two protagonists of Ultraman Rob, Rosso and Blue, finally be reunited? Faced with these doubts, and focusing solely on the questions you raised, in my personal opinion, the two brothers Rosso and Blue will definitely merge. As for the reason why I think so, I will give you a detailed answer next.

Faced with the setting routines of previous Ultraman works, the fame of each Ultraman work is often named after the protagonist Ultra Warrior. This is like Ultraman Seven, throughout the work An Ultra Warrior appeared in the movie, and as the protagonist, he naturally named it after him. In addition, for the setting of two protagonists appearing in subsequent Ultraman works, such as Ultraman Mebius, although there are two Ultraman Mebius and Hikari in this work, The warrior appears, but the title of the work is still named after Ultraman Mebius.

Faced with such a setting, it stands to reason that the protagonist Ultraman Rob will inevitably appear in Ultraman Rob. However, in the real work, the appearance of Rosso and Ultraman Blue, although they are both Is the protagonist. But judging from the name, it has nothing to do with the name of Rob Altman's work. So there must be some reasons behind this setting.

Facing their names here, there are two Ultra warriors, Rosso and Blue, but after combining their names, they take the first word and combine them to become Rob. Ultraman. Faced with such a combination of names, they can only be named like this after they merge. And this can also very intuitively prove the reason why Rosso and Ultraman Blue merged. But as for the time of their union, I'm afraid it will be at the end of the work, so all fans still have to wait patiently.