To extend the Eyesight warranty, you would have to buy a full extended warranty. I bought one for 7 years, 100k miles.
Here are some threads to read on navigation updates. There is currently one for free from the dealer for some earlier 2014 models, but that is just to update to where it should have been from the factory.
http://www.subaruforester.org/vbulletin/f77/how-perform-nav-update-143577/
All future updates will have to be downloaded from www.naviextras.com, but they may not be free. Read the above thread for more information.
Here are some threads to read on navigation updates. There is currently one for free from the dealer for some earlier 2014 models, but that is just to update to where it should have been from the factory.
http://www.subaruforester.org/vbulletin/f77/how-perform-nav-update-143577/
All future updates will have to be downloaded from www.naviextras.com, but they may not be free. Read the above thread for more information.