If it makes one billion it will be refreshing but I doubt its going to happen. WB is so stupid, releasing trailers around the time of Star Wars. Moving the film to March, running from the 3rd installment of Captain America. The film should have been release the weekend of CA or the weekend after. Its BATMAN VS SUPERMAN. Batman vs Lex Luthor Superman vs Doomsday.
In case you haven't noticed, or been to busy to check the box office. Furious 7 will beat Avengers 2 WW despite opening at the same weekend as BvS will next year and Avengers 2 having a clear path to domination. It has been one of the best upsets ever.
As far as marketing is concerned, a year before Furious 7, we had no marketing at all. A year before MoS, we had the one teaser, a year before Civil War we have nothing.
And yeah, the GA frankly does not care about similar characters if the execution is good. Apocalypse will beat both Darkseid and Thanos to film, what does it matter?