Do you honestly think we'll see level 5 this patch? With the amount of content added in the previous patches, a new class is like an atom bomb. Its the hype generator. Why would they keep level 5 a surprise when it would make all the forums buzz with excitement?
Let me put it to you like this Ragnarok - if it turns out that they actually do put out level 5 with this patch, I'll print out my posts regarding the topic and eat them. I'm that sure it ain't happening. I dig your optimism though, its cute.