That's great news, and thanks for sharing the link. I know I was looking forward to it last spring, and was bummed when they cancelled it.
After reading your post my reaction to BSA getting involved is I think it would draw some additional members for BSA. I'll admit I am speaking from ignorance as I have never participated in scouting at any time, but it seems to me that people who like to fish may see scouting as another way to get out and enjoy the outdoors. I would assume (ya I know the saying) that the chapter sponsoring the derby is in it to promote memberships in their group. I know that BS membership has dropped in the past 20 years, and I would imagine they are trying to target a more engaged audience to get new members.
I am also interested to hear how they may tweak the format of the derby.