The lights went out for thousands of Witnesses in 1914, 1925, etc.etc.etc. Each time the announced END didn't come the brothers packed up their spiritual bags and hit the road. Been there, Done that.
I think we can agree on this...Regardless when the End comes, we should be living in a way that we'll gain the approval of God's Son when ever He arrives or if we 'pass on,' when He performs the Resurrection.