Argh! Where is the "EDIT" button when I need one? (I know where, just rhetorical question)
So... Thanks to Remov here are final barrel lengths for the AR variant:
Compact carbine: 305mm (12")
Carbine: 360mm (14")
SAW/DMR: 460mm (18")
Manufacturer's official name is CZ S 805 A1 BREN for the 5.56mm family, did not find yet whether BREN is also acronym or just a rememberance to probably best worldwide known weapon of Czech origin.
Oh, and RumINT has it that India is showing interest in the 805. Will keep an eye on it, but nothing concrete would be known for years I guess... And in the end it would end up just as "huge export possibilities for CZ-2000", ie vaporware.
EDIT: The vaporware aspect is also one of the reasons I reported both CASA and the new rifle just now, when it is generally a confirmed story, the 805 (or rumors of "new assault rifle") was on-and-off for few years already...