Really sorry to tell you, but this really is a forum where Poets of the Fall fans talk about the band. The band members don't really reply to questions here. But the following goes along the lines they've said on Facebook many times.
They'd really love to tour outside Finland and Europe more than they already do and perform their music live to all their fans, but the harsh reality is that Poets of the Fall is an independent band with limited resources and connections. For them taking on a new country goes pretty much one by one, and is dictated by how large the fan base is and how interested local concert organizers are in having the band over.
But the band's fan base keeps growing larger every year all over the world. What you're hoping for isn't impossible. It's difficult to say what part of Asia you're talking about (it's a large continent), but they've already toured in India a couple of times, just to name an example. Their latest India concerts happened just last year in August.
Be patient, and with time, effort and luck good things can happen.