What are the odds that a replacement nexus 4 will have more problems.

My nexus 4 seems to get pretty (around 40 degrees celsius) hot from only 10 minutes of use just browsing on chrome, or using google earth, and playing angry birds (all at different times with that specific app as the only thing running). When it gets super hot I notice significant battery drain. The rattling has become louder when i set my phone down on a table or my bed. I was wondering what the odds are that if I call for a replacement that it will be worse off than my current nexus 4.