#1 done
#2 done
#3 all financially viable done
#4 way to risky for small to medium companies
#5 why fly out with "real" a/c and then take UAVs for most jobs real chopper can do.
There are thousands of people in the industry doing brainstorming every day to come up with something new, but the wheel was only invented once.
I worked on new or partly new projects, but it's really not easy to find something totally new for a well established resource.