Bandai Namco is currently developing several NX titles. Smash Bros is planned to be a launch title. I am not sure about the date - yet ;).

— Dr. Serkan Toto / Kantan Games Inc. (@serkantoto) January 28, 2016

"Bandai Namco is currently developing several NX titles. Smash Bros is planned to be a launch title. I am not sure about the date - yet ;)."

Dr.Serkan Toto is the famous people know for leaking when the mobile game of Nintendo, Miitomo, will be announced, and that it wouldn't be a traditionnal mobile game.

He didn't specified if it was a new game or a port, but since Sakurai has left the development of Smash Bros 4, Bandai Namco will most likely only port it to NX.

I would be fine with a Smash Bros 4 port to NX with all DLC included.

absolutely unrealistic.

Why wouldnt they just make smash bros 5 using the same engine?

Probably a port. Curious about the other games tho.

Wow, that is a juicy rumour. At least Namco-Bandai working on multiple titles is a great thing. Smash 4 might be a great idea for the system (it would be horribly difficult to surpass the Smash4 roster), but I can a backlash and people complaining about the risk of not being a Smash5.

I just want a Digimon game on the NX. Do that, Namco-Bandai, and I'll be happy.

The engine needs to be redone to take advantage of the increased power for the new system. Though they could use the already exsisting game and engine to build a new game on that. ie keep the "upper" level of the engine such as scripting and "handles" the same while changing the "deeper" levels to accomdate the new hardware. So have a development team working on the new engine/in house tools that will be used for all titles for the harware while another team works on the game.

Smash 4 with all dlc as a launch title for the NX is an interesting idea, and they are working on other titles so that's great (assuming the rumor is true)

Now they just need to add the characters that were impossible due to the 3DS version like Ice Climbers and we're good.

Hmmm. An enhanced port of Smash for Wii U as an NX launch title isn't the greatest thing in the world, but I guess it's better than New Super Mario Bros. NX.