For my money if Berbatov doesn't move now (which is 99% likely) and Spurs get Woodgate and Downing. Berbatov will remain a Spurs player for the forseeeable future. Because they''ll have finally become a team capable of challenging for a top 4 or more finish
They won't even reach the UEFA Cup this season most likely unless they win the League Cup (which they probably will manage to bottle), so he would have to take the risk and not play in Europe for a whole next season. Moreover, you cannot be sure that their European challenge will end in success so Berbatov may eventually not play in Champions League at all. Will he take the risk? In the name of what?