Nope. Ila's in her mid-20s to early-30s in the modern/metal band setting that I've been writing in. Idris never had any feelings for Ila's mother, romantic or otherwise--their arrangement was more or less a business transaction that she could have left at any point, if only she'd said anything to him and made proper arrangements, which he was emphatic about explaining again and again to her. She still chose to walk out without a word instead.

And, she left Ila so young that she's a complete stranger to her, and she wouldn't want anything to do with her at that point. Some woman walking in and claiming to be her mother would not inspire warmth or a want for her to be in her life, so would not cause drama in that sense. She'd probably just be a nuisance.