It'll help with encrypted bitstreams, not much else.
Besides, the lack of public RE efforts is AFAIK a political issue more than anything; the FPGA companies have been known to send lawyers at anyone who tries. The bitstream format itself is, following the layout of the FPGA itself, naturally going to be extremely regular and definitely not hard to figure out. They're really like a "worst kept secret" in the industry --- there are probably a lot of people who have already figured it out, but just don't want to attract legal attention.
Besides, the lack of public RE efforts is AFAIK a political issue more than anything; the FPGA companies have been known to send lawyers at anyone who tries. The bitstream format itself is, following the layout of the FPGA itself, naturally going to be extremely regular and definitely not hard to figure out. They're really like a "worst kept secret" in the industry --- there are probably a lot of people who have already figured it out, but just don't want to attract legal attention.