That's what I thought too, but preious threads discussing this said DVC guides had said that BCV were likely the first ones to get replaced (after OKW which apparently has been done). I would think that BWV would be next.
I really think that making reasonably comfortable sleeping arrangements should be one of the top priorities of DVC. To say a 2-br sleeps 8 when it only has realistically comfortable bedding for 4 is ridiculous. Having a couch instead of a real bed may save space, and may me perfect for childless couples, those who don't bring guests, or those who can afford to get a 1-br for just two or a 2-br for just four. However, for most of us, having to jury rig the sofa bed or bring air matresses isn't what we should expect for our money.
Personally, I do like the studio with a bed and couch when its just me, my wife, and toddler daughter, but its very limiting otherwise (especially when used as the 2nd bedroom to a lock-off). I really think they should make a percentage of the studio's (especially one used as lock-offs) with 2 beds. That way you can request what you need or want.
Hopefully these new pull-out couches will be as amazing as reported and this will be a non-issue (best of both worlds). Lets hope that they are durable, however, and that Disney is diligent about maintaining them.