Next week's arcade will be:
Duke Nukem: Manhattan Project, will cost 800 microsoft points and will feature 2 avatar awards.
This game was originally released for PC back at 2002 and developed by ARUSH ent and basically it's a sidescroller, like Duke Nukem 1 and 2 were.
You can check the trailer right on your xbox live games marketplace (vids) , new arrivals or read a bit about it at en.wikipedia.org/wiki/Duke_Nuk...
I'm still surprised noone wanted to post this as news, as it's pretty much confirmed (announced @ E3 indeed)