Formal:
* തൊറേ വരൂ (thoré varoo): This literally translates to "come quickly" and is a polite way to say "come soon".
* വേഗം വരൂ (vēgam varoo): This means "come fast" and is also a polite way to say "come soon".
Informal:
* വേഗം വാ (vēgam vā): This is a more casual and direct way to say "come soon".
* കുറച്ചു നേരം കഴിഞ്ഞു വാ (kurachchu nēram kaḻinju vā): This means "come after a little while" and is a friendly way to say "come soon".
You can also use phrases like:
* വരാനുണ്ട് (varānuṇṭ): This means "you have to come" and implies that you are expecting the person to come soon.
* എത്രയും പെട്ടെന്ന് വരൂ (ethrayum pettenn varoo): This means "come as soon as possible" and is a very direct way to say "come soon".
The best way to say "come soon" in Malayalam depends on your relationship with the person you are speaking to and the context of the conversation.