It's hard to know exactly what you meant in your sentence. If you wish that the city does well in the future (is happy and successful), then you'd say: I hope this city has a brighter future (this suggests it is not doing well right now) -or- I hope this city has a bright future

I hope that this city will have more happy/brilliant days such as that (day) in the future

Thank you for helping me correct my English...QuQ 谢谢你

Also, just so you know. Your question is grammatically incorrect. Correct: "I want to know if this sentence is correct." also OK: "I want to know if this description is correct" (but the sentence is more than just a description, so I like the first option better)