Do tu think Damon and Bonnie will develope a friendship in the segundo season of TVD?

Yup I do. I think the writers already set the stage for that in the finale. Damon respects Bonnie right now and is obviously thankful for saving his butt. Twice. And Bonnie has seen some of Damon's humanity and thats why she decided to let Stefan save him and is giving him a segundo chance. Right now, they're obviously not "friends", but I think their comlicated relationship will grow siguiente season. Probably trying to stop Katherine from whatever shes planning on doing. Can't wait for September!!!