OK, so I couldn't remember the exact specifics of the rumor(s) so I looked them up. Here's what I got
Things that stand out as wrong:
- Timer and Missions are gone
- Complicated weapons are not planned, or have been streamlined (could be talking about Bow though)
Things that could be interpreted as wrong or at least not quite right:
- Open World (maps are significantly more open than in previous games, but it's not an open world game per the traditional definition)
- Focus on legacy monsters (yeah we got back Rathalos, Diablos, Kushala, etc., but there's more new monsters than old in the base game. But they are certainly identifiable)
- Combat is changed to be more accessible (controls are more responsive and we get stuff like damage numbers, but most of the core combat is more or less what we got in previous games)
- Moving away from gathering and preparation (gathering is much easier to do now, but you still do it. Same with preparing for hunts)
So in the end, there's clearly some 100% wrong info in here, and a lot of what's right is being viewed through a clear bias. Because of this, I can't take much stock in what they say about any corporate dealings about this game.