what, you mean because the ability layout is almost the same, two time elements (energy for PVP fights, stamina for quests), and it uses cards? I think your imagining things. the "My Page" button is clearly a shield with claw marks, instead of a dragon and crossed swords...
I just wish the preview had included either a quest or colloseum fight, instead of memories-and a card upgrade... unless the cut scene with Linda was a quest....
But seriously, judging from Pero Pero, Hell Fire Girls, Lord of Valkyrie, Dragon Providence, and Dragon Tactics:Memories, its probably a sub-genre formula that lots of companies use....