As far as I remember, the F1 2012 and F1 2013 Mac versions were developed by Feral Interactive, not Codemasters themselves. I don't think they have or will be doing a F1 2014 version.
F1 2014 is regarded by many a stop-gap, a fill-in release with minimum changes from F1 2013. This is because instead of releasing the game just before the end of the real F1 season as normal (November), they plan to release F1 2015 at or near the beginning of the season in March/April 2015 (6 months earlier than all the other F1 20xx games).
This means that it maybe only 2 to 3 months from now before F1 2015 is released and F1 2014 will be forgotten about. F1 2015 will support the next generation consoles Xbox One. PS4 and the PC (not PS3 or Xbox 360).
I see no mention of the Mac version for F1 2015 either. From their blog :-
Now onto new-gen. 2015 will see us release our first title on new-generation platforms. The game will launch earlier in the Formula One season and then go onto receive live digital updates. These updates will deliver 2015 content into the game as the season unfolds, ensuring you’ll be competing against the same drivers and teams you watch week in and week out! The game will be available on Xbox One, PlayStation 4 and PC.
Of course this doesn't mean it won't happen, because a Mac version would come later, and is not normally released at the same time as the other platforms, and is developed by Feral Interactive (usually).