I would imagine JB is waiting to see if Hamilton jumps ship before maming a decession. If Hamilton did, based on the driver market JB would probably become the team leader, and bank on Mclaren giving him one more shot at the title (they are bound to produce the fastest car at siome point over the next 3 years). If Hamilton stays, I could see him going to Ferrari with a contract that protects him up until they back a driver for WDC, probably around Sep/Oct in the calander! I think Alonso would be fine with that (he probably thinks he will beat him anyway) and JB appears to be able to balance team dynamics without being an out and out No2! Cant see Vettle having anyone next to him other than a rookie!