I actually think waiting to show Lestat as a victim of Armand is a very intentional move on the writers' part. They seem hyperaware that there's a portion of their show-only audience that didn't fully understand the ending of Season 2 and weren't sold on Lestat. So they purposely built Season 3 and its marketing around slowly shifting those perceptions -- besides the fact that they didn't have enough money to do the final episode concert, which likely heavily influenced the shape of the season, I do think the Long Table was more revelatory for show-only viewers. For book readers, the Long Table tells us nothing new about Lestat. But watching show-only reactors on youtube, many seem struck by Lestat's self-hatred and how hard the Table is on him. It feels like they didn't fully understand him until the Long Table, and always end up cheering when he presses the 8 minute snooze button.
Based on Sam and Assad's comments and performances, and knowing Sam at least is aware of the planned season arcs, I don't think they're NOT going to show past Lesmand. I think they'll likely tie that memory to Akasha's coercion, and likely got the idea from the book itself, where Lestat explicitly compares Akasha's spell voice to Armand's. But we'll see!