The changes made to Gen5 (in construction and performances, not only on graphics for marketing) are summarized in this topic.
The Gen5 is an incredible board, which has its place next to the Pro2, with a character and a vivacity of its own. The difference in riding is described in this post from Patrice. We can also mention that the Gen5 "closes" the end of the turns by itself a little bit more than the Pro2, what is an advantage for those who want to progress in the technique of Swoard-EC (rotations as surfers, and "closed" turns). The Pro2 is more for riders who already know how to pilot their board in EC, and it carves perfectly even on bad snow. But let's be clear: both models are suitable for beginners and experts as well. This is one of Swoard's many assets: versatile boards (broad carving spectrum) while being super-efficient when requested.

Feel free to add your feedback in this thread as it was made for previous models.

The Swoard team