Zomgies, they will make it...At 27" tall it won't fit where my 800D (24") is right now, so oh well! And the probable 400$+ cost would be a let down.
http://www.legitreviews.com/article/2115/1/

Obsidian 900D

-Super-massive, ultra-expandable tower case
-10 expansion slots, 9 HDD/SSD bays (3 hot swap), 4 ODD bays, room for 2 PSUs, 15 fan mount points, 5 radiator mount points
-Also includes blue and white inserts and installation tool
-MSRP and Availability: Price and details in official announcement upon release – ETA: February/March

Not just massive...Super-massive!