Key-Lime / Android 5 = Rumor. Google never said anything official about this.
Eclair was 2.0, *Froyo was 2.2, Gingerbread was 2.3. And yet, there is very big differences between all these.
I don't see why 4.4 would not have big changes.
I really don't think Google need Nestle to promote their stuff. Just for the sake of a laugh.
Don't you like KitKat ? One of the only chocolate bar that I like. ^^
Now.. Did the Android team changed in the last few week..
Jean-Baptiste: Leader of the Android Open Source Project. Left because of the trouble Qualcomm caused.
Hugo Barra: Android product management VP. Left because Sergey Brin, co-founder of Google was screwing is wife.
So, yeah, there might be a few change to come.