Let me put it this way: if anyone of the current drivers can do it, it's him. But, on the other hand, Alonso was also going to break records, then Hamilton, and look what happened. So, he has the best chance but it's still pretty slim.
I am looking at this from a purely technical perspective because I dont really want that to happen.
Such records only happen when all teh stars align - amply made clear by failure of Alonso and Hamilton and success of Schumi.
But 3 WDCs already looks like the stars are somewhat aligned.
1> Great driver in a great team for a long period of time.
2> Team making quick cars out of the box - meaning season start (2012 was an off year)
3> Team able to out develop others - Newey certainly does that
4> Team identifies & fixes issues without wasting time - RBR much better than Ferrari
5> Team making very few errors srtategically (unlike Macca)
6> Driver capitalising each opportunity ( hunger for even one single point) - Seb has that much more than others
7> Complete driver - Great in Quali , Good race pace , salvages bad situations like AD 12 and Bra 12
If Seb signs with RBR and RBR maintain the team and dont lose the plot - I think there is a good chance (i d say 30% ) that he goes on to beat 7.