So what we have is confirmation from Headroom that there will be a new, expensive dynamic from Senn that will not be called the HD700, and will not resemble the HD580/600/650. We also know that another store has listed an HD800. People seem to think this new headphone will come out in the first quarter of 2008, but I don't know where that information originated.
Contrastique tells us that a Senn rep has told her that they will be coming out with a new Electrostat, but would not give any other specifics, such as release date or retail price. The rep also said that he could not discuss any upcoming high-end dynamic offering.
One person has said that Senn will be coming out with a headphone priced at about 1000 EUROS, but he did not say where he got that information from. He speculated that because an electrostat would be more expensive, this headphone is probably a dynamic.
Tyll from Headroom has implied that he hasn't been informed of the introduction of a new electrostat.
Someone else has mentioned new offerings from Beyer that he is not allowed to go into any detail about.
I am inclined to think that there will be both a new dynamic and later, a new electrostat.
There was no confirmation of any timeframe for the release of new products in this thread (though there may be in others), but I'd expect that the dynamic headphone, probably called the HD800, will be released first, since Tyll from Headroom doesn't know about the electrostat. I can see Senn being willing to discuss the electrostat before the dynamic even if the dynamic is coming out first, because the electrostat won't make any current products obselete.
There has been a lot of speculation on this thread about the possibility of the rep who mentioned the electrostat having been disingenuous, but I think that this is not the case. I wouldn't expect Senn to lie to customers to throw them off the trail of what's really going to be introduced. That would be dumb. Then again, I would've expected Tyll to know about a new electrostat before reps started discussing it with customers, as was the case with the new dynamic. It could be that Tyll and the dealers haven't heard about it because its release date isn't so near as that of the dynamic.