But the data in the EEC database does not indicate that such cards will come out
AMD has already stated that there will no longer be any truly new video card models in the RX 7000 line, but there may well be modifications of existing ones. And one of these could be the Radeon RX 7600 XT.
At a minimum, such models are registered in the EEC database. They were registered by PowerColor. As always, EEC registration does not mean such models will be released.
New inexpensive AMD video cards with 10 and 12 GB of memory.
In the previous line, AMD had RX 6700 XT and RX 6700 video cards with 12 and 10 GB of memory, respectively, but the bus was 192 and 160 bits. The RX 7600 has a 128-bit bus. The RX 7600 XT apparently cannot rely on any other GPU than Navi 33, judging by the statement from AMD itself. That is, AMD is unlikely to be able to make the bus wider than 128 bits. True, in the history of video cards there were models with a non-standard ratio of memory volume to bus width, so in theory, the RX 7600 XT could have the same GPU as the RX 7600, the same bus, but more memory. AMD could also use a 96-bit and 80-bit bus, but that would be weird.