They are my top choice to make one of the remaining spots!
The problems are, as people have said, Carthage partly represents many of the Phoenician cities. The others are city states, Tyre, Sidon. These are reasons we're already unlikely to see the Khmer and Mali (deservedly I think) return.
Does anyone have suggestions for leaders, UA, UU, UB's?
For a UA, I was trying to think of some system that would give them a monopoly on a certain resource. Much like they had with the purple dye, which was their major export. If the Phoenicians have the most improved of x resource, other civs would be unable to trade theirs...haven't really put to much thought into it though.
UU: Bireme ? It was an early, effective, version of the trireme..but how could it be represented in-game to be useful? Give it some sort of strength bonus when it is covering/protecting a sea trade route ship...again, I haven't thought these through.