unless they trade him today, i'd assume they'll still tender butera. they already released pena and have room on the 40. unless i'm mistaken they can release him until opening day without having to guarantee his salary. so i'd imagine they'll keep him until the end of spring training or until they need to make room on the 40 for incoming free agent signings, whichever comes first.
dunno, tho. baseball roster stuff is so complicated.