It might skip to 4.xx depending on how much work they do on it. They seem to release a new version whenever a new major movie title with BD-J is released. I'm hoping for a leap to 4.20
The last time I dreamt that 3.80 was out just days before it actually was released. I kid you not. I remember seeing 3.80 on the screen in my dream. This is astounding as I was hoping for a 4.xx version, and they don't always release in x.10 increments.
So, if I have another prediction with a version number I'll be sure to post it. Let's see if lightning strikes twice.
I was not very happy with 3.80 because while some titles did load faster, others loaded slower.
I don't care if the firmware updates stop as long as they maximized the player potential.