My dealer and I talked about this, he is huge fanboy and apparently both the cabinets and the drivers have gone through a major revamping. the cabinets are stated to be now made in a whole different factory (in house?)
The pricing went up about $1k each, though the 805 almost doubled...
personally I and others weren't all that thrilled with the 805's to begin with, so I hope they made some changes for the better there to reflect the extremely large increase on just that model alone...
On a secondary note, my dealer until now never carried the Paradigm Signature line - I bought my Sig S8's from him and gave him an over night with them when they came in and he found they were good enough to place alongside in his until now strictly full B&W room, he also just started to carry the Magnepan's which I was also very impressed with as well...
The price to performance on the Signature line really seemed to fit into a bracket very nicely after the latest revamping of the new 800 line update and price increase. The Sigs now fall right in a pricing spot that has become unoccupied just perfectly, and with the sound signature to compete very well... I also think that his wife swayed him with the glorious looks of the Sig S8's...
Sorry about the paradigm fanboy talk... but I think I worked it in with the B&W talk nicely...