Please, please keep Aatrox's old voice actor.

His voice is simply fantastic to listen to. It encourages you while playing him. So since he is getting updated VO, please see if the old voice actor can do the new lines.

"Cut the courage from them." "Every kill brings victory closer." "There will be no retreat." "Teach them to fear us." "Now we turn the tide!" "Pain is temporary, victory is forever!" "War reveals what is within us." "Surpass the frailty of your form." "Let fear become fury!" "Hesitation is death." "Witness truth!"

http://leagueoflegends.wikia.com/wiki/Aatrox/Quotes

Listen for yourself. How can you possibly swap this out?