If u think abt it, it's not exactly 3mths.. ard 2mths plus. Ard July to Aug last yr she released the t2m single rite? It could be possible that during that period she'll be releasing a new single.
As for the concert held in SG, i'm hoping it's true. Perhaps they saw the success of the concert in other countries, that's why they decided to hold it? Argh, i guess we just need that confirmation..