As I expected, JANG just published a blog post about his thoughts on the end of BIONICLE. He... wasn't very kind (though I agree with much of what he said).
You can read the rest here.
I dunno. Jang's constraction collection is (or at least was) waaaaaaay larger then that. We'll probably find out the current state of his constraction collection in his impending update.
If Jang truly is done with constraction, it's a shame. He was one the people who's work got me into BIONICLE MOCing in the first place. But then again, if he's done, he's done. Everything has it's time.