Ah the App Market -

There are a few pitfalls too watch out for. Especially because rebranding an app can have a lot of issues - You will most likely lose your search results, and unless you do this properly you will lose most of your active users, and ill be basically starting from scratch.

I have re branded, reskined, and rebuilt hundreds of apps - Specifically Network Booster Pro had 1million+ downloads and we completely updated and rebranded - which was close to starting from scratch.

If you like i can provide you more advice with all your options and the best way for you to make this move with the least amount of problems.