Marvel Comics has released the cover and a final pair of teaser images for Avengers Vs. X-Men.  These join the ten previously released teaser images, each displaying a one-on-one battle (see "Marvel Teases 'Avengers vs. X-Men'," "More 'AVX' Teasers," "More 'AVX' Teasers," and "'AVX' Teasers, Round 4").  The cover image is the well-traveled team vs. team motif, by Jim Cheung.
 

 
 
The two individual battles are Captain America vs. Wolverine.
 
  
 
 
 
 
 
And Hawkeye vs. Cyclops.