Dear God, no! It would be like MyLife acquired Google (forget about the money) and poisoned Goog search with their crap! Hope there is not enough money is Zucks pocket to pull something like that!
Ancestry.com is for sale[1] and it is the largest social network in the world (granted, most profiles are inactive).
The potential is huge for an acquirer, however, it would be relatively easy for another social network to allow members to create profiles for the deceased. In the future, many of today's social network connections might just function as 1st person genealogical records (provided the companies can sustain).