Quote from Kamahl, the Fallen »
White is much more realistic than blue when we have the knowledge that Dragons are dead. White has far more to do with any Resurrection that is being speculated and it also upholds any leadership values we can speculate on with the set having some level of organized armies.
We also know that Ramaz is much more fitting for Temur based on the info available about him.
Did you have to quote me before I could edit out that stupid typo?
Anyway, I do not see blue as the most likely candidate for Sarkhan, but it is still more likely than white. Resurrection of the dragons is, for one, pure speculation. It is also not really in white's color pie - white tends to resurrect smaller creatures, which would get Sarkhan only a few eggs and whelps. Mechanically, he'd get better results from black and from green. Also, if the story is about getting the dragons back, there are more ways to do that than just resurrection. There is no need for Sarkhan to go white in opposition to his philosophy.