Replacement of Apps in the app store

I have got a rare problem at the moment, hope I can get any help from here. Thanks in advance.

The thing is that my company has two apps, outsouced one (named A) and insourced one (B) both in the App Store and running normally. Of cource they are not identical but similar indeed. There is a decision from the management that we are going to replace A with B, so that there is only one app in the app store instead of two.

Here is what I am thinking to archive this, 1. Pull off/Delete the app B from App store. 2. Create a new version of app A. 3. Recompile app B with A's bundle Id and etc., upload the build to itunes connect under the name of app A. (We have A's certificates and provisioning files) 4. Submit the build.

Has anyone done this ever before? Will apple reject this new app? Any advice is welcome. I appreciate all your help, and thanks for reading my post.