Yes. I think it's going to be a dark sibling (don't anyone even mention sibilance again or you're gonna hear us rolling up our sleeves. There is NO sibilance in LCD-2, any rev.
).
My guess is a new model, not a replacement rev. It's going to be essentially their version of the hd650, with intentionally recessed highs, more so than rev1 or earlier. Why? Because they've now addressed the customer base that wants treble extension. They now have a headphone that will probably widen their customer base. Now the next logical step (my logic, not actual logic) is to address the customers that are in fear for their sanity over extended treble. A similar approach as with Sennheiser HD650/800, BUT not a different class like with Senn. It would be an equal to LCD-2 in price and quality. Also, they already know how to make that kind of driver and can spend some R&D time making it noticeably darker instead of worrying about losing extension. That's already covered. After that, I'll let you treble junkies speculate on that