Both of your quotes are wrong. Beth is packing the meat on the DLC, and smaller DLC is confirmed after the first one will be released.
Tbh, im too lazy. google skyrim dlc and it will pop up with numerous todd howard testimonies to this fact.
http://kotaku.com/5885983/bethesda-skyrim-dlc-will-feel-more-like-expansion-packs
"Because the gap is going to be bigger, we want to put little things out for free in between. We've already done that for PC with the high res pack. We're trying to figure out what those things are." - Todd Howard
So thanks for the false info, free DLC for the PC has already been released.