Will the Switch 2 have some secret sauce? If so, what?

[siebensus4]

dane007 said:

All they need is better screen quality, better battery life and an actual next gen leap in graphics from switch 1 while keeping it at low cost. That alone should win with gamers lol

I would be happy with that, but I guess the many casuals who bought a Switch won't upgrade for those reasons alone.
If Nintendo only upgrades the hardware without a new feature, I'd see sales below 100M.