The following interview snippets come from a Gematsu feature with Suda51...
G: Thanks for sitting down with us, Suda-san. To start us off, why did you decide to make Travis Strikes Again: No More Heroes rather than a traditional No More Heroes 3?
Suda: “There are several reasons. The first is that this is a brand new adventure for Travis. He is no longer an assassin going out to kill other assassins. He is going into video games, fighting in games within the game, so it’s a completely new concept. No More Heroes 1 and 2 kind of set the formula for the series, and with this one I wanted to take it out of the numbered installments and do something completely different.”
G: Will Robin Atkin Downes return to voice Travis in the English version?
Suda: “There won’t be any voice acting in Travis Strikes Again.”
G: Is this going to be a physical release?
G: Are there any plans to port No More Heroes 1 and 2 to Switch? Or is it something you at least want to do?
Suda: “Oh, 1-2-Switch. No More Heroes 1-2-Switch, yeah… It would be awesome if we could do it, but I still have to figure it out. Marvelous and Grasshopper Manufacture share the IP, so I would have to get their permission.”