iPad seriously needs tethering developed one way or another for photography and the iPad Pro has becoming a popular tool. Will Lightroom CC finally have it added or will Classic be developed as well. What will it be as little to none is available to help support tethering for studio or other shooting sessions in need?
None of the folks here (even the Adobe folks you see sometimes as they are usually customer support folks) have any clue about Adobe's plans but one thing we know is that Classic will NEVER come to the iPad. They have shared their plans in that respect so don't wait up for that. Tethering might come to iOS or Android but I would expect it to be several years out as they haven't even fixed simple stuff such as printing yet. Tethering is several orders of magnitude tougher than that as there are no third party APIs for iOS or Android that they can utilize like they do in Classic and Apple makes this sort of stuff really hard to accomplish. You will probably be stuck using other apps to tether shoot and then import those files into Lightroom Cloudy on the iPad. However, I don't believe there are many apps that can shoot raw tethered oin the iPad. Certainly the camera makers apps don't do this I think so your best bet for shooting tethered remains a simple laptop with Mac OS X or windows on it.