I'm split on this. On one hand, Super Nintendo World as its own theme park is like, my fangirl dream. On another hand... I have a hard time seeing this park having the same kind of wide appeal that USF/IOA do. The only way I see it happening is:
- It IS the mythical "video game only" park, and features more than just Nintendo, with other huge game IPs such as Minecraft (which, like it or not, is absolutely MASSIVE). If they're loose with the theme, you could include things along the lines of Ready Player One (not saying RPO would be added because of how underwhelming the film is doing, I just mean similar vaguely video game-based IPs).
- If Universal is actually planning a 4th gate as not a long distance possibility, but as an actual fairly soon goal.
Either way, I have a feeling a Nintendo/video game-only park being Gate 3 would signify that LOTR is no longer on the table. Which is... weird, considering it felt like a lock beforehand, especially now that the Tolkien estate is being more lenient with rights.