bale needs to stop playing so well!! my fear is that if he continues playing this incredibly without lapsing into inconsistency like he usually does - unlikely, admittedly, but we could potentially be witnessing the step up to the next level of bale's career ala when ronaldo started to become a consistent goal scorer and match winner at man utd (happened around the same age iirc) - if he keeps this up then real madrid will defy sense and buy him this summer just because theyre gonna be so butthurt by their domestically catastrophic season that theyre gonna be pressured to do their usual thing and splash out on the next big thing. if bale chills out a little and has a couple off color games, i think the insane hype dies down and real aren't pressured into an impulse purchase but instead will take a more long term and calculated approach.
analyzing it from all angles, i think a likely scenario is that, assuming spurs get CL, bale stays with spurs for the whole 2013-14 season then leaves in the summer of 2014 for £50 mil, possibly as a replacement for ronaldo who might want to leave if next season is a repeat of this one. i feel like with barca having messi, it is imperative to real madrid's ego that they have a comparable "best player in the world" candidate. in this respect, i think madrid are already plotting their next big superstar just in case ronaldo leaves - and i think they will look to either neymar or bale, depending on how the next 3 months/year plays out.
however, with most spurs players playing so shit, the team is in a weird situation where they actually need bale to be playing this well in order to keep him, but him playing so well might convince real to splash out this summer!