I live in Brazil and during today's afternoon I watched a promo of "Phineas and Ferb's Musical Cliptastic Countdown 2"
It shows 4 TVs, one with the series logo, and one with the cliptastic logo as "Phineas e Ferb Cliptástico 2" (Phineas and Ferb's Cliptastic 2, in portuguese), and the other two with clips of "You're Not Ferb" and "Rollercoaster (song)"
In the end, the voice over says "Em Breve"("Coming Soon", in portuguese). It means, no premiere date yet.
And maybe it'll come to Latin America first than U.S.