As far as I know, you should be able to use the standard options with apt-get dist-upgrade to simulate running this command without actually performing the upgrade.
-s, --simulate, --just-print, --dry-run, --recon, --no-act
No action; perform a simulation of events that would occur but do not actually change the
system. Configuration Item: APT::Get::Simulate.
Simulate prints out a series of lines each one representing a dpkg operation, Configure (Conf),
Remove (Remv), Unpack (Inst). Square brackets indicate broken packages with and empty set of
square brackets meaning breaks that are of no consequence (rare).
-u, --show-upgraded
Show upgraded packages; Print out a list of all packages that are to be upgraded. Configuration
Item: APT::Get::Show-Upgraded.
1
This does *NOT* simulate an upgrade from one distribution to another. Ref. -> Maintenance commands.
– Runium – 2013-04-27T17:08:15.137