As someone who's been looking forward to FFXV since it was announced as Versus XIII, I wasn't really impressed by the trailer.
It kinda just looked like a group of guys driving down a semi-rural highway the entire time, making a few pit stops along the way to see the view and kill some baddies wandering the wildlands, not really doing much of anything.
The only thing I can say I really liked was how pretty it looked, but that's about it. The idea of wandering around massive, wild landscapes while killing the monsters that spawn occasionally has never appealed to me though.
And honestly, the "In Development" at the end kind of felt like an irritable tease at this point.
I was more excited after the E3 2013 trailer, which showcased more plot and locations with things actually in them. I'm going to (hopefully) assume this trailer was to just show off that the game still exists, is (very slowly) making progress, is looking pretty good, and will have more than modern environments, I guess, although you don't need to showcase generic looking fields and caves to prove there are underdeveloped or non-modernized areas. I suppose it did serve those purposes; I guess after all this time without anything new I just found it to be a bit boring.
The characters and their vehicle contrasted oddly with the environments they were exploring, although that could've been done purposely. I take it the whole rural "road trip" scenario will make more sense once you've experienced the game and see how it reaches that point.
I'm still really looking forward to this game, eventually. I do like how vast the trailer seems to imply the world will be, I just hope I'm not spending a good chunk of the game driving down aesthetically pleasing but empty environments. I have pretty good faith they'll be able to tie it all into the story and gameplay in a way that is enjoyable. The whole trailer was really laid back; it didn't get me hyped or blow me away or anything like the E3 2013 one did but it was nice to finally get an update and see that the game's still coming along.