Well, yes I am pretty much sure Nexus devices is going to get the Android 5.0 " L " But one more thing I guess you need to wait a bit more because as far as my testing of Android 5.0 is concerned I have spotted a number of bugs. Device seems to be draining battery much more faster, but yes I believe that the battery performance is getting a major step up in the upcoming time. But again as there's a lot difference in developer and the original one coming out. So I'll say only time is going to decide what we are going to see in near future.