I'm pretty sure that 96.5 being on WZEW's tower is just because it's cheaper to stick it on their tower than lease out one somewhere else. Or maybe there's a spacing issue I'm not aware of. The demographics immediately around that tower site, from what I can tell, are trees and industrial buildings! But the secondary coverage area does include a lot of the midtown area as well as Fairhope on the Eastern Shore. So maybe they're hoping it'll skip over the open water. It's going to get killed by even mild tropo though; WZNS is like a local here many nights, even over into Fairhope and Point Clear. If they paired it up with the 92.3 translator licensed to Saraland for one format, it'd make a pretty good run of covering most of the Mobile side of the bay. But 92.3 is destined for a different format. I think WZEW is doing local music? on their HD3 now to feed it, but I dunno if it's actually on air yet or not.
I haven't really been keeping an eye on WYCT's programming. They don't seem to be in much of a hurry to do anything, and I don't get to Pensacola enough to really keep an ear on those translators.
You're right to be skeptical of WNRP expanding coverage significantly. They're on that 92.3 translator now, and have a permit for one on 95.3 that will broadcast from the WYCT tower up in the boonies in Baldwin County, but it's directional away from Mobile so it won't cover much but cows and trees over here, and Cantonment and Beulah and places like that up around I-10. The AM certainly can't expand coverage any more that I know of. Dunno how they would expect it to reach Baldwin and Santa Rosa Counties except as a weak secondary signal from one of the translators.
Now what ADX does with 94.5 and 99.1 is anyone's guess. They're both going to be hammered by tropo in the summer, though. I think that is pretty much guaranteed.