Is Jesus precursor of another distinct being in Mark?

[Giuseppe]

Paul never talked about the Son of Man.

If Jesus was a failed apocalyptic (even as a celestial archangel) then he had to give room to another Celestial Figure. In this sense even Jesus received the same fate of John the Baptist: reduced to the role of Prophet of another being distinct from him.

John the Baptist failed as Theudas, Judas the Galilean, etc. As a mere Prophet of the future Messiah.

Jesus failed as a dying and rising messiah.

But the Son of Man can't fail.

He is Son of Man (as John) and he dies and rises (as Jesus). Differently from the Gospel Jesus, he is now a Celestial Dying and Rising Figure.

The fact that the Son of Man is anonymous increases the possibility that he had to be named as "Jesus" after the his celestial death. In this sense, the Gospel Jesus can talk about himself as of the Son of Man. Jesus is a prophetic allegory of the coming death and resurrection of the Son of Man.

The Son of Man, being without a name, is a potential de-ethnicized figure. The way to the next wild speculation about the his identity is open.

[Giuseppe]

When John the Baptist was alive, Jesus had to be a figure very similar to the Son of Man.

After the 70, Jesus was reduced (euhemerized) to the same status of John. So that now the new mythic figure is another and not more Jesus.

[MrMacSon]

John the Baptist failed as Theudas, Judas the Galilean, etc. As a mere Prophet of the future Messiah.
.

Do you mean "John the Baptist 'failed' as Theudas, Judas the Galilean, etc., [had] failed" ??

[MrMacSon]

When John the Baptist was alive, Jesus had to be a figure very similar to the Son of Man.
.

Was John the Baptist ever alive? There's a reasonable probability that the section about JtB in Antiquities is a later insertion.

When John the Baptist was alive, Jesus had to be a figure very similar to the Son of Man.

After the 70, Jesus was reduced (euhemerized) to the same status of John. So that now the new mythic figure is another and not more Jesus.

That'a hard to follow: the last segment - 'So that now the new mythic figure is another and not more Jesus' - doesn't make sense.

[Giuseppe]

When John the Baptist was alive, Jesus had to be a figure very similar to the Son of Man.
.

Was John the Baptist ever alive? There's a reasonable probability that the section about JtB in Antiquities is a later insertion.

When John the Baptist was alive, Jesus had to be a figure very similar to the Son of Man.

After the 70, Jesus was reduced (euhemerized) to the same status of John. So that now the new mythic figure is another and not more Jesus.

That'a hard to follow: the last segment - 'So that now the new mythic figure is another and not more Jesus' - doesn't make sense.

I mean: since the delay of Jesus was evident, then a new celestial figure had to assume his place insofar Jesus was going to be euhemerized, and that celestial figure was the Son of Man.

[Giuseppe]

John the Baptist failed as Theudas, Judas the Galilean, etc. As a mere Prophet of the future Messiah.
.

Do you mean "John the Baptist 'failed' as Theudas, Judas the Galilean, etc., [had] failed" ??

yes. Jesus replaced John, and the Son of Man replaced Jesus, in the role of expected savior.