That was a very enjoyable trailer - visuals and sound both. That being said, the new Switch looks less ... "fun" than the existing Switch.
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It's not that I expected something groundbreaking, but if I had been the creative director I would have said that they need to focus on whatever was updated, e.g., graphics or performance since effectively nothing major has changed.
Current Switch with the neon blue/red joycons had its own character, and IIRC that color combination was what Nintendo often marketed. This change makes it look like a MSI or ASUS product than a continuation of Nintendo's own line.