TD was promoted for 2 years, had a re-release AND a movie and it still did LOUD numbers WW. But back to the question, Katy will do around 200k. Her pre-order sales are not that great according to HDD. Roar single sales is not really an accurate reflection of her album selling power lest we forget Flo-rida and his record 636,000 debut sales week for "Right Round" gave him a wopping 55k first week album sales. Just saying.
Only after countless promo spots, a re-release, 6 #1 singles, and a movie.
The album was already 2x platinum before the re-release and 6 #1 singles. It's currently at 2.8 million. Not spectacular, but still one of the best-selling albums of the decade.
I don't think that person was saying that Roar was bigger overall. They're saying that Roar is performing better than WFL did during its first few weeks of release, and that part is true.