Everything is a rumour until and unless it's officially confirmed and while in this particular case the newspapers and gossip sheets were - luckily - right there have been plenty of cases in X past where they were wrong, too.
I don't know if a rumours forum is necessary - personally, I would prefer it - but very definitely everything posted that hasn't been officially released by X JAPAN Project should be marked as that. Additionally, everything should be clearly sourced, not "I heard somewhere..." if it's in the news section. If translations are provided, those should be clearly sourced as well.
Maybe what we should have are posting guidelines, at least for the new forum.