I don't care how "reliable" any source is. I never, ever, EVER believe it. It takes too much mental energy to care that much at get my hopes up when they're wrong 99% of the time. A rumor is a rumor.
Also the very "glass half empty" part of me knows that whenever the next Paper Mario game gets revealed it's just going to disappoint me again, so even if I knew an announcement was coming I couldn't get hyped for it--only deeply, deeply sad.