Called the SC guys today and asked about the replacement for my bike's rusted tank. They asked my name and went through some records in their system and told me that, a complaint has already been registered for your bike, and the replacement will be available on monday.
So, I think its not a hush hush stuff, Suzuki wants every complaints to be registered.
For any potential users who are apprehensive about buying this bike due to this rust issue, don't worry go ahead and book your bike. If there is rust it will be replaced.