"I cant wait for 2017" or "I cant wait until 2017"
If you're waiting for the year 2017, "I can't wait for 2017" is right. In other words, if you're excited about 2017, then use "I can't wait for 2017." (It's like "I can't wait for the party!")
If you have to wait from now all the way until 2017, "I can't wait until 2017" is right. (It's like "I can't wait until noon to go to the restroom; I have to go now!")
If you have to wait from now all the way until 2017, "I can't wait until 2017" is right. (It's like "I can't wait until noon to go to the restroom; I have to go now!")