I take this quote as it is the most detailed about what seems to be the general opinion: Yes to a sequel, but with a different twist. That's the way I'm going to try and follow.
Now, it's not that easy to come with fresh ideas. I had thought about an escape contest between Louise and me as she is not ready to do that, we'll have to keep that for later.
Let's brainstorm about the sequel. Here is already one idea:
1. Felina has to walk or crawl along a 500-m track. Every 2 minutes, she has to stop and someone of the public comes and add a handicapping device to her. She wins if she manage to reach the finish line within two hours.