The thing is that FOX 10 has a 14 year head start on its 9pm newscast, and has the benefit of having the FOX lead-in. I believe that there is room for two 9pm newscasts in Phoenix, but I'm not convinced that 3 will end up #1. Another question is with the new 9pm cast, where will they be producing the Tucson-cast for KMSB now?
As for the 4:30am show, with all the bad luck Channel 5 has had (especially their first-to-worst performance at noon this past sweeps), they'll be number one from the first day. The 11am show has a very bad lead-out (I would have chosen a replay of the previous day's "Inside Edition" over "Your New House," which should be airing at 3am - it's not made to be a Monday through Friday show).