It seems like only last week that the Galaxy S23 Ultra dropped (in reality it was February - read our full review), but rumors are already surfacing about what upgrades the S24 Ultra is likely to bring. According to a recent report from GalaxyClub.nl, the telephoto camera could be due an increase in optical zoom, to 5x (up from 3x in the S23 Ultra). Whether or not the separate 10x periscope telephoto camera will also get a zoom boost remains to be seen.
One point to note in general: though we may talk about 3x and 5x 'zoom', these cameras don't actually 'zoom' at all. A potential upgrade to a 5x zoom camera simply means the camera uses a fixed lens with a focal length 5x longer than that used by the primary (wide-angle) camera. So if the S24 Ultra recycles the 200MP, 24mm-equivalent primary camera from the S23 Ultra, its '5x' telephoto camera would be a sensor fronted by a fixed 120mm-equivalent lens.
