Ceaser does gain some years after that. But he has never showned any interest in taking someone in, rather then the real Juilius Ceaser who is actually more progressive then this guy
Though maybe the Courier could be the next "Kaisar" but who knows. But in any case the line of Ceaser is not followed, he's just a god to the legion. His ideals, however, are as much followed as the ant understanding what is outside the hive.
Sadly, yes, I don't remember his full speech but doesn't he say something like "Well The Legion isn't meant to last forever?" and that the climix of this faction is to clash with NCR in order for something new to blossom out of the ruins of both factions?
Anyway, this is only speculation but if Caesar gains some years and he teaches someone to follow his ideals and lead Legion like he had then I have hope for them.
But if Caesar dies then I believe they will fail in their goal.
But I don't think we're shown enough of what actually happens if Legion wins.
We get the whole "Well civilization has finally come to the mojave wasteland" in the ending slider.
Well... What? So what happens?
It feels like the ending is cut abrupt.
Civilization finally comes... But what happens to Caesar?
What happens when Caesar dies?
What happens to The Legion?
I think Obsidian did a bad job at that part.
All we have is that sliders "word for it" but no actual context to back it up, making it hard to find a good argument for pro-Legion.
And I take my reference from a quote of Legate Lanius if you go with the Barter check which, in simplified, basically stated that the Legion has no supply lines in the Mojave. This is from an experience he had in conquering Denver when no villagers would support the Legion, or wiped out. They have no popular support, they will leave little villages entact besides Primm and Goodsprings. Novac becomes the second Nipton, etc etc.
Ah, I never did the peaceful solution with him at the end when I went for NCR run so that's a part I missed then.
Still, they have no support in the Mojave but we don't know how the majority of Arizona is like.
Ceaser's Legion taking over the east and the west would be a much as a hassle for them as it would be for the NCR. It took years to just take the lands of Arizona for the Legion, and took even longer to form whatever formation they have. (I'm Guessing Arizona, and New Mexico.) And then with the 'death' of Burned man; here comes Lanius.
Was a mistake to put Lanius as the legate.
His battle expertise is great for Legion but if he becomes the new Caesar... Well... Let's just say I have no hope for anyone in the west coast+Arizona.
Also; why would the Eastern Brotherhood eventually go back west? Only the Outcasts intially wish this but they wait for the West to come to the East. Although, it is true, we aren't given much of the Legion's military, society, and culture.
No no no, not them, the "other" chapters that are still left in the west coast, not all of them are destroyed if IIRC.