They've brought in this "Pigs Eye" test now though what has basically allowed them to re-write the FPS requirements. In short if a projectile fired from a firearm can penetrate, a healthy 11 month old pigs eye membrane, it is considered a dangerous weapon. it turns out the new magic number is 214fps.
What I'm also seeing by looking at these reports, is that now your pellet gun, Airsoft gun, and paintball gun must now be trigger locked, or otherwise stored safely, when not in use. And they are going to be treated as firearms for the purposes of safe storage.
Thats why I'm a little worried