Id just like to know what is still available for FW 99 prizes or if the stuff will even matter/carry on if site reform/restructure and stuff in that general ish.

If they cannot be kept, you will receive ryo, chakra or something else. However, the shishido I believe are still going to be kept, so those who have one will be able to keep theirs.

Regarding the shishido, there are still 3 others left:

• Kagetsuchi's Bracelet
  
• Ryūjin's Anklet
  
• Benten's Earring
  

These may still be chosen from. Refer to the items that are already in the creation area or in the inventory topics of the two people who currently own one. Me being one of them and Jojo's being the other.

There is also the stuff Ryouji personally makes for people, so you could even ask him to make something for you. However, just know that he may say that anything outside of the shishido in terms of "legendary items" or whatever won't be possible after the revamp.

Edit: Don't forget the 200k ryo and 20 chakra as well. Though, the ryo reward will most definitely be slashed, along with all the other ryo amounts around the site.

Are the swords of the seven sages going to be kept?

Yes, but you'll have to talk with Ryouji about them. He might only allow those to be earned by either events or IC.