If Arsenal manage to get through the 4th qualifying round of the Champion league to stay a top seed, Lyon (Who have to do the same) Inter Real Madrid and CSKA Moscow will all be in Pot 2 in the group stage.
Sure would be fun if Inter found Chelsea, n Madrid found the United group.
If Arsenal Lyon Shakhtar Donetsk and Sporting Lisbon all manage to get through their qualifying rounds, Juventus will be in Pot 3.
German champions Wolfsberg, a young progressive side who score goals for fun, will be in pot 4 no matter what, along with Standard Liege who put Everton out in the UEFA Cup and were the better side against Liverpool in the CL.
This means there could be a group next year of
Man Utd
Real Madrid
Juventus
Wolfsburg
or
Liverpool
Inter
Rangers
Standard Liege
But knowing Uniteds luck in this competition, it will be
United
Sporting
Besiktas
Unirea Urziceni
Home 
United Real would be good. As would Chelsea Inter. Fully expect Arsenal to g o through..