I have heard rumor of September. Based off some temporary exclusive for the PC platform expiring. True or not, I really don’t know.
There is a fix for using the OP levels that are otherwise blocked off on EPIC due to a GBX unintended or underhanded implementation of said dlc preventing their use without Lilith dlc.
To play the OP levels without Lilith dlc you can use the hex multi tool for BL2 (and TPS) to adjust the max lvl attainable. Turning the max lvl to 81, not 80 for whatever reason, will allow the game to recognize you as adequate lvl to advance OP levels from running the peak. Without the dlc, lvl 72 is inadequate to use the OP lvls. The dlc broke it.
Yes, this fix results in being lvl 81 rather than 80, but it’s better than being locked out of a highly important aspect of the game that had already been paid for.
This solution has been better than waiting for something that may never come for me. Already owned the game on steam (only some dlc though), Xbox 360, and handsome collection for PS4. Not thrilled about being strong armed into buying all the dlc again on steam to play the game I bought 3 other times so… Yay workarounds.
Edit: P.S. Welcome to the dark side. Enjoy power and control beyond your wildest dreams as you inevitably laugh in pity at the unfortunates whom struggle eternally with their shackles to limitations… kidding, sort of.