I do not. UCAVs are very good for some roles but there are some things only helicopters can do right now and hence both need to work in tandem. UCAVs cannot advance with armored columns and troops at low altitude, they cannot be equipped with cannons to engage individual troops and positions to provide covering or suppressing fire, they are more vulnerable to enemy aircraft at higher altitudes as the SHORADs cannot cover them etc. Maybe we will see more helicopter style UCAVs in the near future though, those can definitely replace gunships.