KohakuMixed feelings about this. On one hand, it's pretty cool to see how ridiculously dedicated the Mother fanbase is and this honestly does look pretty professional. But as impressive as that professional-looking display is, seeing the title "Mother 4" on their site annoys me greatly, knowing that it's a fan-made project with no permission from the original creators at all. I probably wouldn't care as much if they didn't make it a numbered sequel, but it feels awfully arrogant to call what amounts to fanfiction Mother 4.
I wouldn't be the least bit surprised if this gets a CnD, and I wouldn't really feel bad if it did.
You can look back and interpret it how you want, but Itoi has said in an interview like, years ago that if Mother 4 was ever going to be released, he'd want someone else to do it. I doubt that Nintendo as a company would feel the same way, but this is a project that's already been going on for years if I remember correctly. I sort of feel the same way about them outright calling it "Mother 4" but considering I'm actually replaying Mother 3 right now and remembering how much I love that game, I would like to see how this fan project ultimately ends up.