You know how my Cardassians think--that person would have to be visible for quite some time already to have real support. It would have to be someone present in their politics for some time. Not as weak as Ghemor and not as "unreformed" as the Directorate.
I know only one name that was present on political scene of Cardassia at that time. Gul Daset. Still, he would be closer to the Directorate than Ghemor in his approach to the Federation.
Not another anonymous "pie in the sky" fellow. The Cardassians would not accept that kind of election again, seeing how badly they chose the previous time.