Question: What are the odds of Almost Human porting Legend of Grimrock 2 to the OS X and Linux operating systems in 2014?
Answer: Because it took Almost Human a little over 8 months to port the first Legend of Grimrock game to the OS X and Linux operating systems, I doubt they'll port Legend of Grimrock 2 to those operating systems within the next two and a half months.
Notes: Some players have reported that the Windows version of Legend of Grimrock 2 is playable on the OS X and Linux operating systems via Wine 1.7.28 -- but they didn't reveal the exact specs of their PC. Getting games to work via Wine is hit-or-miss.