At :20 seconds into the second trailer, we see Dave squinting as he screams his trademark "Alviiiiiiin!". One can assume that something happens to Dave's left eye a moment earlier in the film. Maybe one of the Chipmunks accidentally throws sand in his eyes? We can see this being a major plot point.
2. A Human Romantic Interest for Alvin?
At :28 seconds into the second trailer we see Alvin attempting to "put the moves" on an older human female. Could this be a powerful statement from the director and writer about their opinions on love and self identification? Could their stance on this hot button issue be an attempt at "Oscar Bait"? Time will tell.
3. A Marriage?
While this is common knowledge to most hardcore Chip-Heads, the use of a wedding ring at :44 seconds into the second trailer leads me to believe that there's a wedding in the works. Could there be a Mrs. Dave in the future?
4. Road Trip Gone Wrong?
While most road trips are "car based", the shot at 1:08 in the second Road Chip trailer leads us to believe that Alvin and the boys spend at least part of the trip on foot!
5. Shots at the TSA?
At 1:21 in the second Road Chip trailer, we see one of the 'munks in an x-ray machine. Perhaps Alvin's well placed satire is finally going to take on the TSA's invasive airline safety procedures? For America's sake. We hope so.
6. Raunchy Humor?
At 2:13 into the trailer, we see Theodore shaking his rump while singing a classic Chipmunks parody of the Sir Mix Alot hit "Baby Got Back". Is this a sign of a raunchier turn for the Chipmunks? Harry Potter aged with its audience, so why not Alvin?
7. We'll Have to Wait and See!
All of these questions will be answered and more when Alvin and the Chipmunks: The Road Chip has its much anticipated premier on December 18th, 2015. May the Chipmunks be with you.