Best approach to redesign a mobile homepage with both existing and new features?

I’m currently working on an existing application whereby, 1. I’ll need to redesign the homepage 2. New core features will be added to it

Now this work is for a client that I’m working it and they are requesting a for a concept for the homepage. What’s the best approach in the UX field to work on this?

I did work on an Information Architecture but I don’t find it useful since the new features haven’t been worked on.