Nós não sabemos. O próprio Tolkien vacilou sobre isso.
Em Contos Inacabados , Tolkien diz:
[of] the Blue little was known in the west [of Middle-earth], and they had no names save Ithryn Luin 'the Blue Wizards'; for they traveled to the east with Curun'r, but they never returned; and whether they remaine in the East, pursuing there the purposes for which they sent; or perished; or as some hold were ensnared by Sauron and became his servants it is not now known. But none of these chances were impossible to be."
Christopher Tolkien menciona em Contos Inacabados outro adendo do pai:
Indeed, of all the Istari, only one remained faithful, and he was the last-comer [Gandalf].
Mais tarde, em Cartas , Tolkien diz:
I really do not know anything clearly about the other two - since they do not concern the history of the N.W. I think that they went as emissaries to distant regions, East and South, far out of Numenorean range: missionaries to 'enemy-occupied' lands, as it were. What success they had I do not know; but I fear that they failed, as Saruman did, though doubtless in different ways; and I suspect they were founders or beginners of secret cults and 'magic' traditions that outlasted the fall of Sauron.
Também temos, de Povos da Terra Média ,
“The ‘other two’ came much earlier, at the same time probably as Glorfindel, when matters became very dangerous in the Second Age. Glorfindel was sent to aid Elrond and was (though not yet said) pre-eminent in the war in Eriador. But the other two Istari were sent for a different purpose. Morinehtar and Romestamo - Darkness-slayer and East-helper. Their task was to circumvent Sauron: to bring help to the few tribes of Men that had rebelled from Melkor-worship, to stir-up rebellion … and after his first fall to search out his hiding (in which they failed) and to cause dissension and disarray among the dark East … They must have had very great influence on the history of the Second Age and Third Age in weakening and disarraying the forces of the East … who would both in the Second and Third Age otherwise have … outnumbered the West.”
Então, realmente, temos três possibilidades:
- Eles foram enlaçados por Sauron. e / ou
- Eles caíram e fundaram cultos mágicos. e / ou
- Eles tiveram sucesso na medida em que enfraqueceram os aliados de Sauron no Oriente.
Mas, por Tolkien, não sabemos qual dessas possibilidades, ou combinação de possibilidades, realmente ocorreu para um fato. Nós não sabemos exatamente qual era a sua tarefa, mas a respeito de seu ponto em relação a Aragorn e Rhun, parece claro na época da Guerra do Anel, muitos milhares de anos depois da chegada dos Magos Azuis, eles não haviam convencido todos os povos de o Oriente a abandonar Sauron - e isso é provavelmente muito esperado. Eles poderiam ter facilmente mantido os aliados orientais de Sauron sob controle ou em caos por centenas ou milhares de anos e nós simplesmente não sabíamos.