If you have been following this news, after former President Cory Aquino's burial, many supporters have been urging Noynoy to run for president, as they strongly believe that he will be a great leader as his parents, Ninoy and Cory. At firs Noynoy was unsure but later it is clear that he is interested to the position.
Anyway, in my opinion, Mar's early declaration of giving up his candidacy for presidency and Noynoy's asking for more time to decide is the party's way of getting the pulse of the masses of whether they approved of the decision or not. I mean, why asked for more time to decide and not confirm your candidacy if Mar had already confirmed it in a way? What are they trying to prove?