I don't think there's room for a NEW dance chr station. One of the already existing chr's would have to flip or tweak to become a dance leaning rhythmic since a completely new dance leaning rhythmic chr would be too similar to all the chr types we already have in many ways, and I doubt a chr dance will be considered before a dance lean rhythmic. I also believe that one Phoenix chr station flipping or tweaking will cause somewhat of a chain reaction of things to happen in the Phoenix chr world because no matter which one you change up, someone will want to tweak to "fill in the hole", especially if KKFR or KZZP are flipped. If either KZZP or KKFR flipped, someone would "rush in" or quickly begin to tweak more towards the urban sound or more towards the rhythm top 40 pop sound. The only station I can see making the least amount of impact towards other stations music formatting if flipped is KMVA, since I doubt anyone would try to fill in for their sound if they left (but it would probably give KZZP and a few shows to syndicate if they wished (and probably one in particular for KZON)). We may be flooded with chr types, but it is in such a way that some of them would cause a disruption or leave a hole to be filled if they were the one(s) who ended up flipping since they all operate and sound differently, unlike in certain parts of California, where if you took one chr away, no one would really care.
I know of one station that would sound great as a dance chr (or to be more specific, a dance leaning rhythmic), but there is another station and a half that is/are in existence that I think would keep that station from doing it even if they wanted to.... I don't see a chr dance being considered before a dance leaning rhythmic, which is why I say I don't think there's room for it. However, I don't think a straight up dance format would really affect what everyone else is doing, but the problem is that is less likely to happen than a rhythmic dance station. The only station I can surely see NOT changing at all musically, regardless of what happens, is KZZP.