I have an FCC alert set up for whenever Nintendo submits an application. Normally they don't include pictures (IIRC) but the one I got this morning did. I don't have a Switch Lite to compare but it appears identical, and in fact, this quote is directly from the application:
IDK why they would have a new revision already unless they are aware of something seriously wrong, if anyone smarter than I has any suggestions, I would like to hear them. (Source: https://fccid.io/BKEHDH002)Based on the manufacturer's declaration,
Model HDH-001
can be regarded as equivalent to Model HDH-002 for the radio
characteristics related to this application.
(Refer Theory of Operation-Differences)