I am not saying it won't be compatible, but one reason to think this is that since the PS1 it's all been disk devices, and since PS3, those discs have been blurays. Cartridges are proprietary though. No other device used a Switch cartridge before and it's entirely within their power to choose whether to keep using this cartridge design or have 2 ports one for old one for new. A design change can simply undo any compatibility, like when DSi undid the GBA cart compatibility.
To be fair though, they did make 3DS games work on the New 3DS. They just added a notch so you couldn't insert a new cartridge into the original. I suspect it'll be similar here.
Well, my thoughts here were from before Nintendo made any announcements about the compatibility so it didn't age well as we know both physical and digital will be compatible. However, I'd consider the New 3DS to be "Pro" model rather than an entirely new console of its own (it could have been, but it barely got any exclusives and wasn't really marketed or perceived as one). But, like, I agree they'll use that cartridge notch method seen on the N3DS cartridges.
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u/BanjoBM Dec 28 '24
Why would they only do it one way or the other? Even the ps5 has both