Oh please, by all that is good and righteous in this world, let this game be developed in a similar fashion to, but even better somehow than Blizzard's Hearthstone.
Anyways, yes the trademark was filed with class 9 and 41 (videogames, software) into the European Union Intellectual Property Office on June 6th, with an apparent official logo. See the two trademarks below:
Via: Nerdleaks
Via: Nerdleaks