Be ready for clones of Pokemon Go

It's popularity has surpassed Twitter's DAU and Tinder's total install base : http://www.forbes.com/sites/jasonevangelho/2016/07/10/pokemon-go-about-to-surpass-twitter-in-daily-active-users/#5bc7a9415174

I wonder it won't be long before we see many clones of it in App Stores.

Thoughts?