only been 1 time to hyatt, and it is not as exiting as villagio or city centre. u just have to make smeting special there, like new shops with new brands which not available in qatar... ex: victoria secret, levi's jeans, more hobbie shops n electronics or try to bring in dept store like debenhams, marks and spencer , bhs , etc.
also what u can try, a play ground for children which parents can leave them under d management supervision, so mom and daddy can shop peacefully..... lol... :)
not a day care... i forget d name, but in jakarta (indonesia) they have something like this. they play n pretend what they wanna do when they are growing up.
will be superb n diferent from other malls... n hopefully bringging more people to hyatt....

ps: i'm a newbie just over a months here, so dont know too much about other malls except what i mention above, if what i mention already been here, my apology.. ^_^