From the latest release notes:

NEW (LAMANNIA ONLY): Two new Epic Feats have been added for Warlock:

  • Epic Eldritch Blast: +2d6 Eldritch Blast Die. Requires 21 Character levels, 12 Warlock levels.
  • Epic Arcane Eldritch Blast: +2d6 Eldritch Blast Die. Requires 26 Character Levels, 12 Warlock levels, completed XP for at least one Arcane Epic Destiny.
The "Epic Arcane Eldritch Blast" feat was actually added and is takeable (can take it at lvl 26 or 28), but the regular "Epic Eldritch Blast" feat is MIA.

Will it actually be added for U26?