[And watch as I magically retcon and hand-wave the timing of this.][Once she'd arranged things with Sam and Cris, and finished talking to Bruce, Iris put down the journal, put her necklace back on, and started moving around the apartment. First her own bedroom, where she had several bags mostly pre-packed, waiting in her closet. She'd had them for years, updating them as TJ grew in and out of clothing. It was a habit she'd started in her other Gotham, just in case, and she'd grown even more serious about it once the hotel deposited her back in this Gotham. Clothing she liked, sets of scrubs, papers, records, and other important things. And tucked in between everything (some in TJ's bag as well) were stolen pieces of jewelry that
their Selina had given them. She'd done her best to save all of them and only live off of what she made at her job. Just in case.
Her own room taken care of, she moved into TJ's, where he was playing quietly with his current favorite toy. With his help, they packed his things too. She'd been telling him since he was tiny that someday they might need to go to a different city, so he (mostly) accepted it. As long as he could bring the things he wanted. It made for a few very full bags, but it wasn't too long before she was helping him with his shoes and putting his backpack on him.
The hardest part was explaining how, exactly, they were going to get there. Iris finally ended up using the "magic" excuse, which he seemed to accept. And then, with a look back at their home and not knowing if they'd ever be back, she told him to close his eyes, and she opened the door to the hotel hallway, pulling through child and luggage in only a few seconds before closing the door behind her.]