Bitcoin will definitely over shadow most banks because bost people find it difficult to join queue in banks just to withdraw or deposit but with bitcoin one time transactions are done lol.
As for the end time and the mark of the beast hmm it is just getting nearer and nearer for it says the whole world will use one currency but I think bitcoin is yet to accomplish that but sure by that time I will be long gone to heaven. I pity my generations to come lol.