The latest issue of the Japanese magazine VJump had a page on Final Fantasy XV, and it included something rather interesting.

While the article itself was just a batch of catchphrases repeating what we already know, the screenshots at the bottom of the page show Noctis fighting (with a spear in two of them). The build and situation seems the same showcased in the spectacular Jump Festa trailer, the frames are actually different, showing different perspectives and positions, for instance vehicles (that are clearly visible in the trailer) are absent here.

It'll definitely interesting to see what kind of weapons Noctis will be able to use, but for now I leave you with the scan below.