By chance came accross this website, almost not accessible through hyatt.com... you need the direct URL. HP to open in November 2017, although doubtful... no availability can be searched until end of 2017.

https://petersburgdowntown.place.hya...otel/home.html

Further coverage:
http://www.hospitalityonline.com/hya...-st-petersburg
http://www.visitstpeteclearwater.com...-downtown/5880
in another post I read it should be the highest building in St. Petersburg, including appartments

Job openings are listed, too:
http://www.hospitalityonline.com/emp...etersburg/jobs