My thoughts on this are simple. If you are a corporation, and the public asks you a question, and there isn't a legal reason why you can't answer it, you should, and you should do so honestly. Even if the answer is something like, "We're still working out our product schedule and have no release dates yet" or, "This is an edition change to a degree similar to what's been done in the past, but we're not using that term in our advertising because some people react negatively to it". Or even, "We do want you to buy the new stuff we're releasing, and expect it to replace the existing material".
I know: hopelessly naive. But it's the right thing to do.