There is no news about devices support for NTU version maps, PanAfrica map was the only one official reference we had ,now discontinued, apart our own personal device garmindevice.xml , but obviously we cant look at all devices.xml to reply our members questions about this matter, that's why I considered interesting to post this list here.
Listed devices have officially support for NTU maps, this is incontrovertible evidence naturally, same HWID devices should have too, so if 3450 is listed ,3490 will have too.