diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -21,6 +21,7 @@
 
 from mercurial.i18n import _
 from mercurial.node import (
+    hex,
     nullid,
     nullrev,
     short,
@@ -501,6 +502,8 @@
 
     def _finishrebase(self):
         repo, ui, opts = self.repo, self.ui, self.opts
+        fm = ui.formatter('rebase', opts)
+        fm.startitem()
         if self.collapsef and not self.keepopen:
             p1, p2, _base = defineparents(repo, min(self.state), self.destmap,
                                           self.state, self.skipped,
@@ -551,7 +554,7 @@
             if self.collapsef:
                 collapsedas = newnode
         clearrebased(ui, repo, self.destmap, self.state, self.skipped,
-                     collapsedas, self.keepf)
+                     collapsedas, self.keepf, fm=fm)
 
         clearstatus(repo)
         clearcollapsemsg(repo)
@@ -561,6 +564,7 @@
         if self.skipped:
             skippedlen = len(self.skipped)
             ui.note(_("%d revisions have been skipped\n") % skippedlen)
+        fm.end()
 
         if (self.activebookmark and self.activebookmark in repo._bookmarks and
             repo['.'].node() == repo._bookmarks[self.activebookmark]):
@@ -1517,7 +1521,7 @@
     return originalwd, destmap, state
 
 def clearrebased(ui, repo, destmap, state, skipped, collapsedas=None,
-                 keepf=False):
+                 keepf=False, fm=None):
     """dispose of rebased revision at the end of the rebase
 
     If `collapsedas` is not None, the rebase was a collapse whose result if the
@@ -1541,6 +1545,10 @@
                     succs = (newnode,)
                 replacements[oldnode] = succs
     scmutil.cleanupnodes(repo, replacements, 'rebase', moves)
+    if fm:
+        nodechanges = {hex(oldn): [hex(n) for n in newn]
+                       for oldn, newn in replacements.iteritems()}
+        fm.data(nodechanges=nodechanges)
 
 def pullrebase(orig, ui, repo, *args, **opts):
     'Call rebase after pull if the latter has been invoked with --rebase'
diff --git a/tests/test-rebase-templates.t b/tests/test-rebase-templates.t
new file mode 100644
--- /dev/null
+++ b/tests/test-rebase-templates.t
@@ -0,0 +1,44 @@
+Testing templating for rebase command
+
+Setup
+
+  $ cat >> $HGRCPATH <<EOF
+  > [extensions]
+  > rebase=
+  > [experimental]
+  > evolution=createmarkers
+  > EOF
+
+  $ hg init repo
+  $ cd repo
+  $ for ch in a b c d; do echo foo > $ch; hg commit -Aqm "Added "$ch; done
+
+  $ hg log -G -T "{rev}:{node|short} {desc}"
+  @  3:62615734edd5 Added d
+  |
+  o  2:28ad74487de9 Added c
+  |
+  o  1:29becc82797a Added b
+  |
+  o  0:18d04c59bb5d Added a
+  
+Getting the JSON output for nodechanges
+
+  $ hg rebase -s 2 -d 0 -q -Tjson
+  [
+   {
+    "nodechanges": {"28ad74487de9599d00d81085be739c61fc340652": ["849767420fd5519cf0026232411a943ed03cc9fb"], "62615734edd52f06b6fb9c2beb429e4fe30d57b8": ["df21b32134ba85d86bca590cbe9b8b7cbc346c53"]}
+   }
+  ]
+
+  $ hg log -G -T "{rev}:{node|short} {desc}"
+  @  5:df21b32134ba Added d
+  |
+  o  4:849767420fd5 Added c
+  |
+  | o  1:29becc82797a Added b
+  |/
+  o  0:18d04c59bb5d Added a
+  
+  $ hg rebase -s 1 -d 5 -q -T "{nodechanges|json}"
+  {"29becc82797a4bc11ec8880b58eaecd2ab3e7760": ["d9d6773efc831c274eace04bc13e8e6412517139"]} (no-eol)