I'm playing car out, on level 4448. How do I unlock more houses/areas?

On the land if you play about 20 ads each fourth section you will eventually have a hotel, build four hotels on each island and it lets you move forward. I have made it to seven islands, I am at level 5010 and the land just says “coming soon”, but I do collect a lot of coins every hour so when I am able I will be to build more. On land 5 I got a space shuttle and land seven I have dinosaurs!