Is Lex Luthor joining Titans?

Is Lex Luthor joining Titans?
Titans Season Four Is Coming To HBO Max.
Mar’i Grayson was referenced… wasn’t she?
Having Blackfire in custody is not good.
It’s been known for a while that Barbara Gordon would be arriving in Titans Season 3, but we did not expect Red Hood and Scarecrow.
Are three fan-favourites headed to Titans?
The Season 1 finale of Titans ended with mind games galore.
Amazon Inbound! Welcoming Donna Troy To The World Of Titans.