Silverstone seems to be using the same layout from the first Raven to implement it in 2 others. The Raven 2 and the Fotress 2 (FT02). The Raven 2 seems to have lost a bit of its extravagant look from the first one, which looks better to my liking and the Fotress 2 has the same style as the others before it.
They both have the 90 degree motherboard placement, where the hot air will be released from the top and cool air being sucked in from the bottom. All the cables will be connected on top, but will be covered up smartly. The size of the FT02 is 615x497x212mm, I think that the Raven 2 is slightly larger due to a different more plastic design on the front and top of the case. The price tag will lay around 200 US dollars. I cant really say which one I like best since the FT02 also comes in black. I do think that the Raven 2 looks way better then the orgininal Raven.
Next to those two, Silverstone comes with a the new affordable GD04, mATX HTPC case, for 99 US dollars. The GD05 is the same type of case, but with a plastic design, which will cost around 79 US dollars. And Silverstone also releases a new ITX case the ML03 with a 65W pico power supply for an HTPC setup. Also a few accessories are being released like the TOB03, that holds a slim optical drive and has a hot swap 2.5 inch drive bay, and the TS221, a dual 2.5 inch enclosure for RAID setups.
Here are a few pictures:
Raven 2
FT02
GD04
Source: http://www.techpowerup.com/96206/Silverstone_has_More_up_Their_Sleeve_Offers_the_Raven_2_Guts_Inside_Another_Case.html
Source: http://tweakers.net/nieuws/60559/silverstone-toont-fortress-2-behuizing-met-afwijkende-layout.html (Dutch)