This is wrong speculation. AMD won't skip N3 and go straight to N2 for compute tile. I think that Zen 6 CCD will have classical 8 cores built on N3, and be released this year or early next. For packaging it is correct, they will use base die to move tiles closer and decrease latencies and power consumption, that high now for idle state.
As for N2 tile, I think it is for Zen 7 to be relaased somwhere in 2027, as demand for N2 wafers will be high (Apple, QLC, Intel), so price and availability will be difficult for AMD throughout 2026.