I liked both of them quite a lot and I WILL say that The Worlds End is a better movie and I probably enjoyed it a bit more. That being said I voted for This is the End simply because it made me laugh more.
Yes one day. Hell Im going to go out on a limb and say I hope theres an even better animated series created someday. I LOVE BTAS. It was a HUGE part of my childhood and what got me into liking Batman in the first place. That being said I feel people hold it on to high a pedestal nowadays. For example Im going to be straight up controversial and say I sorta dislike the animation in the first 3 seasons. The style used in Justice League, Batman Beyond, and The New Batman Adventures is far superior in my opinion. If we get a Batman animated series with writing as good as BTaS with animation as good as Young Justice I'll be one happy camper.
Here is the scene of the Flash origin from the newest episode of Arrow for anyone who didnt catch the episode. This scene was pitch perfect in my opinion. (Also includes the end where Arrow finally gets a mask)
@enigmalantern: Its not false hope at all. These titles have been heavily rumoured for months now and DC is obviously cleaning up their line up for something. We will probably see like 7 - 10 new titles in April.
@mucklefluga: The article said that they would be exploring the past present and future. Assuming the present they're speaking of is 5 years in the future to us when the book will primarily take place maybe the future is the even further future.