Now that I'm going through comparing page by page (as one does on a Friday night) she actually has changed a lot more than I first noticed.
She's made a lot of the greens more dynamic with fades and screens that weren't there before early on. Mainly in the earliest chapters when she was still getting the feel for it. She did a transparency on Koga's mask at work for several key moments early on too so we can see how she's reacting vs the black mask originally. She slightly changed Aya's eyes/expressions a several times in the early chapters. To a more precise emotion. Koga too sometimes. Mouths cleaned up. I'd say their iconic moment expressions were the same though so no worries there. One thing I really like as a change is when she used to have a washed grey panel of someone like in a memory she now drew it as her normal style or uses a more balanced screen. That grey just never jived. Most of these changes are early on and balance the pages more or be more intentionally with Aya. It really refined her signature tight transitions even more from the beginning now.
I did see album art, tshirt art, and posters made more generic. They still specifically talk about the bands/show playlists, which is actually nice compared to other manga that Great Value Brand even band names to avoid trouble, but she can't get away with the album art in the published version 99% of the time it looks like. Unfortunate, but I don't think it ruined anything. Oddly the album art at the festival booth stayed branded Gun's N Roses but it's a different cover. Wonder if they got permission for one instance like that? I'm not familiar with the new cover, but it still had their name on it. Not sure if this is tighter or looser than what a US publisher would require. Hopefully they aren't forced to get goofy with the band names.
All that would have taken a lot of work to do so no wonder she was busier than she thought. Editor-san stuck with it. Plus the extra story (just noticed the first few pages were new material too and perspective bookending the new story at the end between Aya and Koga with her foot tapping connecting it...I was too stunned by the color to catch on first reading how literal that tapping linked it.) and bonus boolets.