I like the idea of a Justice League movie. I also like the idea of Batman vs Superman. Contrary to an earlier comment, Superman can't just kill Batman. Neither of the characters are killers and the "vs" portion is along idealogical lines, not murderous ones.
Whatever DC decides to do, the fact is they'll have to recreate (not necessarily reboot) the Batman character. He's the most popular DC hero by far and that isn't going to change. I would be upset at them jumping on the Bats bandwagon so quickly if not for the haphazard way Nolan chose to end his franchise.
** I miss the Batman of the Animated Series**
The rumored plan is to start from scratch with a JLA film and cast all new actors to play new incarnations of the characters. They might be following the popularity of Marvel's Avengers, but it's clear they are not following the playbook and that gives me hope. Part of me hopes they keep the JLA in another universe separate from all other tellings and maybe even make it a golden-era period piece! Let's face it. The effects budget is going to be huge considering all the superpowers so why not just go for it and place it in a time before cellphones? A time when America was at war, gangsters controlled the streets and newspapers were still relevant.
That said, a Batman film is said to follow the JLA picture. If they are to recreate Bruce Wayne, I hope they ditch any origin story and just cut into the action. Give us good Batman stories that don't necessarily have to tie into some timeline. Give us a world closer to Batman the Animated Series. Forget Keaton, Nicholson and Ledger and just start fresh. Make something fun. Personally, I like what the videogame world has done with Arkham Asylum.
I don't see why that Batman has to tie into the JLA Dark Knight, but maybe it could. That actor would certainly get quite the payday. I just hope they don't use Levitt. That idea in the film left a bad aftertaste.
Anyway, those are my thoughts. Right now I am looking forward to seeing what they've done to Supes next summer.