I don't think they exist in
TP.
I think that there's more than one set of sages in the Zelda universe, that all pertain to something different. The ghostly sages, for example, all dwell in Arbiter's Grounds and are so skewed from being similar to any other set of sages it's ridiculous.
Then there's the Lokomo, who surely coexist with the Wind and Water Sages from
TWW (in whatever current form they take, even if it's a new incarnation). Some unknown sages were also mentioned on the graves in
PH. And then there's Sahralsa and the other two old men, who coexist with the maidens.
But in their current form, it's doubtful. I don't think the idea of multiple race sages took up in the Child Timeline like it did in the Adult Timeline, not to mention there isn't any Kokiri in sight in
TP.