Wolff and I are constantly thinking of new weapon concepts, so you'll see some changes on the page. All the new weapons we're thinking of are T3 type stuff, so it won't affect character creation. I will mark weapons we haven't quite nailed down as WIP so you'll know not to build your whole concept around getting one yet.
We've also added Advanced Weapons to the list. These are things that you can't buy until you've played a character at least 3 months, and if you want more than one you have to wait 3 months between them. They also take some RP to get your hands on, and have stiff Stat and Skill requirements.