Neon I love you to bits! Your work is a few tiers above the best games on the site, you really have a special talent and I think we couldn't be luckier that you're using your talents to um, making friends in need haha.
Now this might be a personal opinion, but I've been looking forward to seeing Cassie since the beginning of the game - right when there was just a single mention of her! And we've been building up to her showing up for 10 chapters now. Obviously the same can be said for a lot of characters, I mean they're all on the title page of the game. That being said, Cassie feels a lot more personal given that she's literally the MC's sister, and there's a much deeper connection to her than any of the characters the MC has bumped into since he got rich.
I would be quite upset to see a small update about her, and would really prefer a good long chapter about her rather than something mixed with a remake of the first chapter. I know you have a huge fanbase and you can't please everyone, and it seems this remake is quite important to you. So I'm gonna keep my fingers crossed and hope you can deliver an amazing update for Cassie just like all your other quality updates <3