Formal:
* ਕੋਈ ਨਵਾਂ ਨਹੀਂ (Koi navaan nahin): This literally translates to "nothing new" and is the most straightforward way to say it.
* ਕੁਝ ਵੀ ਨਵਾਂ ਨਹੀਂ (Kuchh vi navaan nahin): This means "nothing at all is new".
Informal:
* ਕੁਝ ਨਵਾਂ ਨਹੀਂ (Kuchh navaan nahin): This is a more casual way to say "nothing new".
* ਸਭ ਕੁਝ ਪੁਰਾਣਾ ਹੀ ਹੈ (Sabh kuchh puraana hi hai): This means "everything is old".
* ਕੋਈ ਫ਼ਰਕ ਨਹੀਂ (Koi fark nahin): This literally means "no difference" and can be used to imply that nothing has changed.
You can also use phrases like "ਬਹੁਤ ਦਿਨਾਂ ਤੋਂ ਕੋਈ ਨਵਾਂ ਨਹੀਂ" (Bahut dinan ton koi navaan nahin), which means "nothing new for many days".
The best way to choose the right phrase depends on the specific situation.