Don't expect them to reveal them just like that.
Yes, to reveal Crash, they would need to do something epic like taking over your computers and putting the official trailer on so you'll all know.
You do know this is a support account? it's pretty much the equivalent of calling costumer support and hearing a guy paid 5$ an hour read stuff of a sheet, except in twitter form. They were probably told to ignore the Crash tweets or just reply things like that the moment they started getting spammed with requests.