In our Liège-Bastogne-Liège race preview, we discussed the removal of a key climb (Roche-Aux-Faucons), and the substitution of a longer, reduced gradient climb (Cote de Colonster). This change could possibly change the race tactics of the final Spring Classics race of the 2013 season.
For more information, read the Cyclingnews article "New climb in Liège-Bastogne-Liège softens the challenge" by Alasdair Fotheringham, here: http://www.cyclingnews.com/news/new-climb-in-liege-bastogne-liege-softens-the-challenge