Based on the poster, Ultraman X will have a pet like Victory had Shepardon. Cards seem to be replacing Spark Dolls, although the latter will still appear. Gomora will appear as a spark doll. Zero and Victory will be in cards, as well as an ultra who may be Tiga!
Also, monsters in this series seem to be known as "cyber kaiju". We have Cyber Eleking, Cyber Bemstar, Cyber New Monster. It doesn't seem the ultras are also cyber.
X also will have a kind of armour which tbh reminds me of the suits from Andro Melos. It seems to be based on New Monster just like Shepardon Saber. Remember those?This new cards gimmick reminds one of Kamen Riders Ryuki, Blade, and Decade, and certainly confirms my theory that ultra is moving more into Rider/Sentai-like superhero territory as opposed to the more sci-fi/mystery tone it had pre-Zero.
So anyway, feel free to discuss your expectations/hopes/fears for this series here!