At long, long last, SkyrimDLC is dated for the PS3 in English speaking countries that are not in the USA. Yes, Bethesda has dated Dawnguard, Dragonborn and Hearthfire.
Bethesda point-man Pete Hines took up the task of telling us all that the DLC had finally made it through Sony's certification with the following details:
He pointed out on Twitter that, "Skyrim PS3 DLC update for Europe. English versions out on 2/13 (DB), 2/20 (HF), 2/27 (DG). Still waiting for FIGS dates."
FIGS in this case means "French, Italian, German, Spanish". He also talked price for the US
, "Reg. price is $20 for DB and DG, $5 for HF. First week of release, each will be 50% off. So $10 for DB/DG and $2.50 for HF." Dates for the USA are over here.