"Last" Time and New Beginning

Every time I think a comic is the last one we'll see of Dick Grayson as Nightwing, DC comes out with something else.  Batman #687 may very well be the "last" time we'll see Dick as Nightwing unless it's a flashback.  Ed Benes does the pencils for the pages below:

 

  

Then, in Batman #688, we get to see Dick as Batman.  I like him as Batman thus far (Batman & Robin is definitely worth checking out).  I wonder how long will he stay Batman.  Will it be something that's undone in a year or two (like the deaths of Superman and Captain America) or will it be semi-permanent (like the different Robins/Flashes)?  Mark Bagley does the pencils in the scans below: