I believe that was the intended purpose behind Strelets*R's M023 French Line Infantry Marching and M010 Fr. Guard Chasseurs (Winter Dress). If you look at the Campaigns listing (http://www.strelets-r.com/Pages/Campaign.aspx?CamID=6) they are grouped together.
I'm not certain, but, I believe that the next Napoleon's HQ kit will be focused on the Retreat from Moscow as well.
I would love this as it has so many possibilities & would be cool as heck! Lots of casualty figs would be great too! However, I'm betting we get 4 sets of WW2 Germans in Stalingrad before we get any more Napoleonics retreating Moscow!